Concept: Audi A1 Sportback

Audi is presenting another version of the innovative hybrid technology in the drive unit for the Audi A1 Sportback concept. At work under the hood is a 1.4-litre TFSI engine developing 110 kW (150 hp), whose power is directed to the front wheels by means of the S tronic dual-clutch transmission. A 20 kW (27 hp) electric motor integrated in the drive train is able to deliver up to an additional 150 Nm of torque (110.63 lb-ft) when the vehicle is accelerating. During the boosting phase, i.e. when the TFSI engine and electric motor operate simultaneously to enable a sporty driving style, the two power packs deliver impressive propulsion. The tried-and-tested front-wheel drive - supplemented by the newly developed, ESP-controlled active front differential lock - ensures optimum transfer of power to the road.
The electric motor is furthermore capable of powering the vehicle alone for zeroemission driving in residential areas, for instance. The capacity of the lithium-ion batteries gives the vehicle a range of up to 100 km (62.14 miles) in pure electric mode; the motor can be recharged from any power socket. The automatic start/stop facility, energy regeneration and phases of purely electrical operation reduce the fuel consumption and emissions of the Audi A1 Sportback concept by almost 30 percent compared to when it is running on the combustion engine alone. Despite its sporty performance, with acceleration of 0 to 100 km/h (62.14 mph) in 7.9 seconds and a top speed of 200 km/h (124.27 mph), the Audi A1 Sportback concept requires only 3.9 liters of premium fuel per 100 km (60.31 US mpg); CO2 emissions are an efficient 92 g/km (148.06 g/mile)

Exterior

The difference is not down to the two extra doors alone: the styling of the fivedoor concept vehicle is a consistent development of the three-door study, the Audi A1 project quattro from the year 2007. Surfaces and lines are distinctly tauter and more masculine.

The basic proportions, with a high vehicle body and a flat window area bordered by a coupe-like roof line, produce a virtually classic look for a vehicle bearing the four rings. The rear end is rounded off by a two-part spoiler with a striking centre groove, integrated into the rear window.

The side-on view presents another typical coupe attribute in the form of doors with frameless windows and a glass-covered and thus homogeneously integrated B-pillar. The bold segmentation of the study's side paneling with its gently rising shoulder line accentuates the styling.

The shoulder line of the Audi A1 Sportback concept with its Daytona Grey paint finish is a new interpretation of yet another trademark feature of the current Audi design. Here, the prominent double lines continue around the entire vehicle as a curvaceous band that links the front end - from which it seems to emerge - with the vehicle's tail, which rises to create a slightly wedge-shaped effect.

The design of the three-dimensional main headlights in innovative LED technology is especially eye-catching. The completely new styling underlines yet again the amount of freedom that this technology has afforded to designers. All light functions - low-beam and high-beam headlights, daytime running lights and turn indicators - have been located in one flat housing, in concentrically arranged, parallel and squared-off strips.

The layout, with light segments of varying sizes - the low beam taking up most space - completely changes the character of the front section, the "face" of the Audi A1 Sportback concept.

The rear lights, too, continue this theme and combine the function of tail and brake lights, turn indicators, reversing and rear fog lights into an unmistakable design. The interplay of acute and obtuse angles and the clear and colored glass areas create a particularly dynamic look. A large-dimensioned, transparent cover over the entire width of the vehicle additionally combines both light units and emphasizes the horizontal design of the rear.

Like the three-door version, the body of the four-door Audi A1 Sportback concept makes optimum use of the small road surface area available to a vehicle from the premium compact class. Measuring 3.99 m long (13.09 ft) and 1.75 m wide (5.74 ft) with a wheelbase of 2.46 m (8.07 ft), it succeeds in combining sporty looks with impressive economy of space thanks to its short overhangs. The transverse installation of the engine also has a significant role to play in this respect. The third dimension of this compact, sporty car - i.e. the height - comes in at 1.40 meters (4.59 ft).

Interior

The interior, with its four individual seats and a surprisingly generous amount of spaciousness for this class, has a tidy, no-frills appearance. The curved, wraparound section combines the doors and the sporty cockpit into one single unit. The dashboard and center console are designed entirely around the driver.

Ergonomics and aesthetics unite to create an ambience of clear-cut architecture and high-class appeal. Details such as the turbine-look air vents and air conditioning controls seem to be straight out of a jet plane. This is where advanced form and precise function are combined in typical Audi fashion: air flow direction and volume can be regulated simply and intuitively by turning or pressing the control button in the centre of the vent.

The center console accommodates the integrated selector lever, only extended in drive select dynamic mode, the start/stop button for the engine, the switch for Audi drive select and the armrest with an integrated mobile phone pocket.

The sporty seats with integrated head restraints offer levels of comfort and ergonomics that far exceed the customary standards in the sub-compact class and live up to the expectations of a typical Audi. A transparent, mesh-like fabric covers the lightweight seat apertures, which further accentuates the airiness of the design.

The materials used for the interior trim appeal with their high-class looks and feel. The contrasting color scheme for the interior - white and red - emphasizes the feeling of spaciousness.

Audi mobile device - the second generation

Whereas the Audi A1 project quattro study featured its own mobile control unit for infotainment and vehicle systems, the Audi A1 Sportback concept takes one step further into the future: the driver can use his commercially available mobile phone (equipped accordingly) as a car phone, address database, navigation system and audio/video player. At the same time it can be used as a control unit for numerous vehicle systems in the Audi A1 Sportback concept. Several phones that are suitable for these functions are already available from various manufacturers.

All that is required is some additional software, which Audi will provide on the internet for the driver to download and install. He can then enter his route plan or adjust the sound system to his individual preferences, all from the comfort of his own home, for example.

The mobile phone and vehicle communicate via a fast WLAN connection, even over considerable distances.

The system also offers the user a security function: within the range of the WLAN it can constantly monitor the current status of the vehicle, for instance whether all windows and doors are closed. What's more, the additional software offers numerous comfort and convenience features such as continued destination guidance on the mobile device after the vehicle has been left in a car park. If the user sets a maximum parking time with the device, its navigation software leads him back to the Audi A1 Sportback concept - in good time of course, allowing for the current distance from the vehicle.

During the journey the mobile device demonstrates its strength as a portable media player. If the user listens to a song in a certain driving situation - on the motorway, for example - it is entered in an appropriate playlist. The software registers when and where the user prefers to listen to particular songs. The music is then available at the right moment.

The MMI control unit in the vehicle is a further development of the familiar design. In terms of feel it is easier to operate, particularly while driving. Grouped around the central rotary pushbutton are four fixed-function hardkeys for the Navigation, Telephone, Car and Media basic menus. Four additional, backlit softkeys have variable functions which change within the individual menus.

The projected softkey labels combine with the bold softkey colors that identify the corresponding menus to ensure swift, intuitive user orientation.

All system information appears in the central display in the instrument cluster. This is designed in its entirety as a digital, freely configurable display with no mechanical elements. Superimposed glass elements make the graphics stand out with a three-dimensional look, producing a level of depth which could never be attained using a standard display.

As well as the virtual, large circular dial of the analog speedometer, which is always visible on the right-hand side of the instrument cluster, numerous other displays can be called up on request, and can be selected via control buttons on the steering wheel. These include infotainment, classic navigation by pictogram or map, a rev counter, information on how to drive as efficiently as possible and a current status report on the hybrid drive.

The layout of the infotainment display features icons arranged in a semicircle. As the driver turns the central MMI rotary pushbutton, the icons mimic the movement until the desired function is selected by pushing the button. Content can therefore be communicated visually, enabling it to be grasped faster and more intuitively than pure text.

Audi drive select

The Audi A1 Sportback concept features Audi drive select, which is also available as an option in the current generation of the Audi A4 bestseller. This enables the driver to pre-select one of two specially adapted configurations for the drivetrain, shift characteristics and magnetic ride shock absorbers.

The default setting is the "efficiency" mode. In this mode, the engine and transmission respond gently to use of the accelerator and shift paddles. This setting is ideal for a relaxed driving style, as well as offering tremendous potential for effectively lowering fuel consumption, and therefore emissions too.

In the "efficiency" mode the Audi A1 Sportback concept can be used for distances of up to 100 kilometers (62.14 miles) in purely electric mode - and it is quite speedy, too: thanks to the powerful battery it is possible to reach a speed of considerably more than 100 km/h (62.14 mph). The combustion engine only cuts in again once battery capacity has dropped to below 20 percent of maximum.

In this mode, the electric motor is not deployed as a source of additional torque; instead it is run selectively as the sole power source to bring about a tangible reduction in consumption. For this purpose, the system makes use of a host of parameters which can be fed to it via the navigation system. In the "efficiency" mode, for example, with a fully charged battery and a distance of less than 50 kilometers (31.07 miles) the vehicle is operated in principle on purely electrical power.

Thanks to the navigation system's ability to detect differences in altitude along the route, regeneration phases as well as the increase in energy requirements on inclines can be computed before the journey has even started. This makes vehicle operation even more efficient through optimum utilization of the electric motor.

The sport mode is designed to produce the dynamic yet comfortable driving sensation that is so typical of the brand and that Audi drivers have come to expect of their car. In this mode, the vehicle's electronics also harness the torque available from the electric motor to achieve extra-sporty acceleration along with excellent lateral dynamics.

The drivetrain

Characteristic Audi sportiness plus a whole new dimension in efficiency - it is all down to the combination of a state-of-the-art turbocharged FSI engine with an electric motor and innovative control electronics.

Under the hood of the Audi A1 Sportback concept sits a four-cylinder TFSI with a capacity of 1.4 liters and a turbocharger. This engine is an advanced version of the unit that made its series production debut in the Audi A3. Whereas the 1.4 TFSI musters 92 kW (125 hp) in the A3, it delivers 110 kW (150 hp) at 5,500 rpm in the study. Its peak torque of 240 Nm (177.01 lb-ft) is on tap over a broad rev band from 1,600 - 4,000 rpm.

The Audi engineers have long since proven the performance potential of turbocharged FSI technology, both on race tracks around the world and out on the road. Indeed, a jury of experts awarded the accolade of "Engine of the Year" to the 2.0 TFSI for the fourth year in succession in 2008.

The new 1.4 TFSI builds on this very same concept in order to maximize efficiency and performance. Multi-hole injectors result in very homogeneous mixture formation and extremely efficient combustion. This is also an effective means of helping to cut pollutant emissions.

The integrated turbocharger promises optimized responsiveness and even more harmonious torque build-up. 80 percent of peak torque can be summoned up from as low down as 1,250 rpm, in other words barely above idling speed. And despite its power, the 1.4 TFSI sets new benchmark standards in its class for its acoustic output too.

Powertrain

Power transmission to the front wheels is the task of the sporty Audi S tronic dual-clutch gearbox. It allows the driver to change gear in fractions of a second without the use of a clutch pedal and with no interruption to the power flow. If required, the transmission performs the gear changes fully automatically, too. If the driver wishes to change gear manually, he can do so by using the shift paddles mounted on the steering wheel. Reverse gear and neutral are engaged via the gear knob on the centre console. The park position is automatically selected when the electric parking brake is engaged.

Between combustion engine and transmission sits the 20 kW (27 hp) electric unit, which cuts in automatically depending on the selected operating mode - or propels the vehicle alone. The battery unit - a package of compact lithium-ion batteries - is installed at the rear of the vehicle, which makes for a good weight balance.

When powered solely by the combustion engine or purely by the electric motor, and when both are used in the boost mode, the Audi A1 Sportback concept operates as a front-wheel drive vehicle. The high torque of 390 Nm in total (287.64 lb-ft) - 240 Nm (177.01 lb-ft) from the 1.4 TFSI plus an extra 150 Nm (110.63 lb-ft) from the electric motor - is transformed into the required level of tractive power when accelerating.

Overrun, or the so-called regeneration phase, is one of the most important instruments of this vehicle concept for optimizing efficiency as it transforms the braking energy released during deceleration phases back into electrical energy, instead of it being wasted and released as heat.

The Audi A1 Sportback concept can in principle run self-sufficiently, using mixed operation of the combustion engine and electric motor. Thanks to the intelligent management of both units, energy regeneration as well as the automatic start/stop function, fuel consumption is almost 30 percent lower compared to a vehicle running on the gasoline engine alone. Although the components of the electric motor add around 40 kilograms to the overall weight, the study still only burns 3.9 liters of premium fuel per 100 km (60.31 US mpg) in mixed mode, while CO2 emissions average just 92 g/km (148.06 g/mile).

Pure electrical operation over shorter distances, however, is a particularly attractive alternative offered by this vehicle that benefits the environment and the wallet alike - all the more so considering that the performance achieved in this mode and the range of over 50 kilometers (31.07 miles) are perfectly satisfactory. "Refueling" the Audi A1 Sportback concept from power sockets alone, therefore, produces an unequivocal result: even allowing for the relatively high costs of domestic electricity in Germany, it is still possible to achieve a saving or more than 80 percent compared with the price of premium fuel. Thanks to "zero emissions" the benefit to the environment is even greater, particularly in congested urban areas.

The chassis

The fundamental ingredient for outstanding driving safety and handling dynamics is supplied by the sophisticated chassis design, comprising McPherson front suspension and four-link independent rear suspension. Large 18-inch wheels with size 225/35 R18 tires boost both driving pleasure and safety. Thanks to the newly developed active, ESP-controlled front differential lock, propulsive torque is distributed according to the driving situation, thereby achieving enhanced steering precision and superior directional stability as well as improved traction and dynamic handling when cornering.

The dynamic chassis is tuned for sporty, agile handling combined with excellent stability, and makes cornering a particular delight. What's more, the chassis excels with a level of ride comfort befitting of higher vehicle classes.

The braking system with its large-diameter discs (measuring 312 mm across (12.28 in) at the front wheels) is more than a match for the drive power. Bred on the racetrack, the system promises outstanding, fade-free stopping power.

The electromechanical steering with speed-sensitive power assistance is also a boon for agile handling. The system boasts optimum steering feel combined with low sensitivity to road surface excitation and a considerable reduction in energy consumption.

The specific strengths of the four-link suspension stem from the way in which it splits the functions for absorbing longitudinal and lateral forces. This permits a high level of lateral rigidity on the one hand for optimum dynamism and driving safety, while offering a great degree of longitudinal flexibility on the other to improve ride comfort.

Audi magnetic ride capitalizes on this quality to make the appropriate damping forces available in any driving situation, thereby optimizing both ride comfort and performance dynamics. A computer linked up to a system of sensors interprets the current driving situation with split-second speed. Here, the driver can choose between two driving programs, depending on whether he wants to drive with a sportier style - with the magneto-rheological fluid requiring a low yield stress - or with a greater emphasis on ride comfort.

The New Audi Q7 V12 TDI

For two decades Audi has driven forward the advancement of diesel technology – from the very top. Now the brand with the four rings is presenting another world first: the first V12 TDI in a passenger vehicle. The diesel, which generates an output of 368 kW (500 hp) and 1,000 Nm of torque (737.56 lb-ft) from a capacity of six liters, gives the new Audi Q7 V12 TDI quattro the performance of a sports car. It catapults from zero to 100 km/h (62.14 mph) in only 5.5 seconds and has an electronically capped top speed of 250 km/h (155.34 mph). The V12 diesel is opening up entirely new horizons in the diesel sector. The big-performance SUV from Audi completes all intermediate sprints with fascinating ease; in every driving situation it boasts superior reserves of power. The engine captivates its drivers not only with its sheer inexhaustible power but also with its highly cultivated manner of operation – the subtle engine sound takes on a voluminous, strong note when the throttle is open. In terms of fuel consumption the six-liter TDI, which features a completely redeveloped common rail injection system, requires an average of only 11.3 liters/100 km (20.82 US mpg), substantially less than the gasoline units produced by the competition. No competitor is able to match this achievement.

2,000 bar: common rail technology with a new level of performance

The two twin-plunger high-pressure pumps have been completely redeveloped. They can create pressures as high as 2,000 bar in the rails – up to now 1,800 bar was the norm. The piezo injectors with their eight-hole nozzles, each with a diameter measuring only 0.12 millimeters (0.005 inch), have also undergone a fundamental reworking. The high pressure creates an extremely precise spray pattern in the combustion chambers that permits a faster, more homogeneous and therefore more acoustically refined ignition process. The highly efficient combustion process also increases power output, cuts consumption and reduces pollutant emissions.

The current generation of so-called inline injectors utilizes the piezo effect: piezo crystals expand in a fraction of a millisecond when an electrical voltage is applied. Over 300 piezo disks are packed into the V12 TDI injectors, which use the expansion to initiate the injection process directly. Each actuation takes just a few milliseconds – at 100 milliseconds, the wink of an eye lasts much longer.

The number of injection processes per operating cycle can be varied across a wide range thanks to piezo technology – reaching as many as five fuel injection operations. One to two pilot injections ensure smooth engine operation in all load and speed ranges. Delayed post-injection serves to increase the temperature of the exhaust gas in order to regenerate the two particulate filters included as standard.

The two turbochargers are located on the outside of the engine’s vee, each of them supplying one bank of cylinders. Thanks to their variable vane geometry the full exhaust flow is directed through the turbines at all times – the turbochargers respond even at low engine speeds and achieve a high level of efficiency.

2.7 bar: high boost pressure

Both turbocharges generate up to 2.7 bar of absolute boost pressure. Two large intercoolers reduce the temperature of the compressed air and thus increase the level of oxygen required for combustion. The V12 TDI features a dual-branch intake system. For each bank of cylinders there is an air filter, behind which an air mass meter is located.

Two ultra-fast control units manage events in the engine, sharing the workload according to a master/slave principle. The six-liter has adopted map-controlled swirl variation of the combustion air from its smaller TDI siblings. The electrically controlled flaps can be adjusted to ensure optimum swirl with respect to high performance and low emissions.

The exhaust system also has a dual-branch design; here Audi engineers focused their attention on exhaust gas recirculation. At partial throttle, up to 50 percent of the exhaust is fed back into the intake air in order to reduce NOx emissions. The large-dimension recirculation system, located at the top of the inner vee, incorporates a water cooler that uses map-based control to lower the temperature of the exhaust gas.

With its 368 kW (500 hp) the diesel generates a specific power output of 62.0 kW (84.3 hp) per liter of capacity – worthy of a sports car. Even more impressive is its maximum torque: between 1,750 rpm and 3,250 rpm the V12 TDI has a constant 1,000 Nm (737.56 lb-ft) on tap – this amounts to 168 Nm (123.91 lb-ft) per liter of capacity. The 11.3 liters of fuel that the potent TDI requires on average per 100 km (20.82 US mpg) is a reflection of its superior efficiency. This figure is even more astounding when compared with gasoline engines offered by the competition – the fuel consumption of these units is much higher all-round.

The transmission

The mighty engine power of the V12 TDI flows through a fast and extremely smooth-shifting six-speed tiptronic, which was specially designed for the immense torque of the six-liter diesel. The driver can shift the gears of the automatic transmission either manually with the selector lever or with the standard chromed shift paddles on the three-spoke leather-covered steering wheel.

The quattro drive distributes the power to the front and back wheels in a 40:60 ratio – giving the vehicle a sporty, rear-focused driving style that guarantees maximum agility and driving enjoyment. When needed, the inter-axle differential transfers most of the power to the axle with better traction. Great care has also been devoted to reinforcing all key components in the quattro driveline.

The chassis

The chassis of the Audi Q7 V12 TDI quattro is a marvel of high-tech construction. Double wishbones guide the front and rear wheels; the axle components are made primarily of aluminum. Thanks to the extreme precision and directness of the servotronic steering, the driver remains in close contact with the road. This is where the handling characteristics, driving safety and comfort of the performance SUV set the benchmark.

Even in rough terrain the Audi Q7 V12 TDI quattro can easily cope with the challenges – with a maximum ground clearance of 240 millimeters (9.45 inches). The ESP stabilization system features hill descent assist and a special off-road mode which optimizes traction.

The standard adaptive air suspension works with sporty new tuning. In combination with electronically controlled shock absorbers incorporating dynamic roll stabilization, the air suspension can be adjusted in three zones ranging from extremely comfortable to highly dynamic. The driver can also adjust ground clearance in five stages via this system and lower the tail end by 71 millimeters (2.80 inches) for comfortable loading.

The ultimate performance SUV from Audi is fitted with sporty 20-inch cast aluminum wheels with a ten-spoke design. Alternatively, wheels with a 20-spoke design are available, as are impressive 21-inch wheels in a choice of three different designs.

Behind the large wheels is a powerful 20-inch brake system. Made of ceramic reinforced with carbon fiber, the internally ventilated disks are notable for their low weight, robust performance and minimum wear. As on a high-performance sports car, eight-piston calipers grip the disks at the front axle, while the rear brakes each have four pistons. The calipers are painted in Titanium Gray – the front ones bear the lettering “Audi ceramic”.

The design

The visual styling of the Audi Q7 V12 TDI quattro gives the vehicle an unmistakable look. Daytime running lights consisting of twelve white LEDs per headlight announce the vehicle’s presence even at a distance. They are located on the upper edge of the air intake slots, replacing the turn signals that were moved to the bi-xenon headlights. Further honing the vehicle’s profile are vertical chromed bars in the grid of the single-frame radiator grill and an underbody protector made of stainless steel. The newly designed bumper groups the highly polished side air intake slots into large units.

When viewed from the side, both the 20-inch wheels and the matt aluminum caps on the exterior mirrors catch the eye. The wheel arches have been widened a total of 26 millimeters (1.02 inches) at the front and 30 millimeters (1.18 inches) at the rear; the lower edges of the doors flaunt striking new moldings. The windows are framed by matt aluminum cover strips; the roof rails sport the same look. The taillights are set in a dark-colored background, while the newly designed bumper incorporates two large, oval exhaust tailpipes. At the rear, the underbody protector is also made from stainless steel. A metallic or pearl effect finish comes as standard.

The Audi Q7 V12 TDI quattro impresses with its elegant and dynamic styling. The ultimate performance SUV from Audi has a powerful and elongated look; with a length of 5,063 millimeters (199.33 inches), a width of 2,000 millimeters (78.74 inches) and a height of 1,737 millimeters (68.39 inches) it boasts the sportiest dimensions in its class.

High side panels lend the vehicle body a muscular appearance, particularly in contrast with the flat, sporty window area. The dynamic line above the wheel arches, the powerful shoulder section and the flowing roof line together with the standard roof rails underline the vehicle’s athletic looks. The pronounced tapering of the front section and the rear end with its sharply sloping D-posts fashion a coupe-like silhouette.

The interior and the cockpit area create a sense of light and airy spaciousness, perfect ergonomics and excellent quality. Audi offers customers a choice of four, five, six or seven highly versatile seats. Depending on seating capacity, the cargo area can hold up to 2,035 liters (71.87 cubic feet).

Aluminum inlays shine in the door sill trims and the carpet is made of velour. Carbon fiber covers and the aluminum-look selector lever give the center tunnel a high-tech ambience, exclusive wood trim is available as an option. The buttons of the MMI operating system, which has proven a superior concept in numerous independent tests, gleam in silver, the air vents in aluminum, the pedals and footrest in stainless steel.

Verano leather covers the electrically adjustable sport seats; the deluxe center armrest and the armrests in the doors are upholstered with leather as well. The front and rear seats can be heated; a special lighting package softly illuminates the interior.

The equipment

Also included in the luxurious standard specification for the Audi Q7 V12 TDI quattro are the leather package, leather multifunction sports steering wheel, black roof lining, folding exterior mirrors, DVD navigation system, Bose Surround Sound system with CD changer, Bluetooth mobile phone preparation, alarm system and tire pressure monitoring system.

The tailgate opens and closes electrically – it partly overlaps the D-posts, lending a muscular look to the rear end. The standard deluxe automatic air conditioning regulates heating and ventilation separately for the driver’s and front passenger’s side, taking sunlight levels into account at the same time.

Audi offers four optional high-tech assistance systems for the Audi Q7 V12 TDI quattro: adaptive cruise control, Audi lane assist and Audi side assist help the driver to maintain the correct distance from the vehicle in front, stay in lane and change lanes. Audi parking system advanced includes a camera to monitor the area behind the vehicle.

The multimedia system becomes even more versatile with the optional Audi music interface, a convenient connection point for the customer’s iPod. Available on request is the Advanced Sound System from Bang & Olufsen, which offers a totally unparalleled sound experience.

The leather package advanced offers even more comfort in the interior, and includes exclusive coverings for the dashboard and centre console. The large glass sunroof – the open sky system – and a rail system for the cargo area further enhance the appeal of the Audi Q7 V12 TDI quattro as a touring vehicle.

The Audi Q7 V12 TDI quattro, the exclusive top model in the series, makes its way to dealers towards the end of 2008.

The New Audi A6 allroad quattro

A winner always builds on his strengths: That's why Audi has again upgraded its luxury class Audi A6 model. Efficient engines have been added to the drive-train lineup, with innovative technologies cutting fuel consumption by about 15 percent across the whole model range. An improved suspension and new high-tech assistance system give the driver even greater control over the car. And the new-generation MMI control system is out-performing itself. The revamped Audi A6 will be launched in the German market in late summer.

It's the sportiest and most popular business sedan on the market. The Audi A6 is leading the Premium C pack - both in Europe and around the world. In 2007, Audi sold about 234,000 units, giving the Audi A6 a 37 percent market share among its core competitors. Most of the A6's sold were equipped with six- or eight-cylinder engines, permanent 4x4 quattro and a luxury assortment of optional equipment - all evidence of the high regard Audi technologies is enjoying worldwide.

Its design is emphasized by a range of bold new accents, perfectly articulating the Audi A6's strong personality. The single-frame grill, bumpers, air vents and fog lights have all gotten a facelift.

The optionally-available xenon plus, LED daytime running lights have been redesigned as horizontal strips with 6 LEDs each. Other options include Audi adaptive light, a dynamic cornering light system, and the high-beam assistant that automatically switches between the high and low beam.

As is expected of an Audi, the interior designers have made sure all the colors and materials match. Standard seats can be optionally upholstered with a new material; the sport seats are available in Valcona leather. Soft armrests on the doors increase comfort, while the integrated headrest system reduces the danger of whiplash.

Audi is now offering an S-line sports package for the most dynamic of drivers. The package includes enhanced performance features like 18-inch wheels and sports suspension that lowers the ride height by 30 millimeters (1.18 in). Its sporty seats, decorative inlays and upholstery give the black-trimmed interior a feeling of even more exclusivity and the S-line exterior package provides more drama. Features from this Audi exclusive program are tailor-made to fit the Audi A6's luxury-seeking mavericks.

One of the major strengths of the Audi A6 lies in its broad selection of engines: six gas and four diesels use direct fuel injection and cutting-edge FSI, TFSI and TDI technologies in a choice of four, six or eight cylinders. Whether stick shift, convenient tiptronic or high-efficiency multitronic, the energy literally flows to the front wheels, or all four wheels for that matter. Its engines are both powerful and efficient. New measures have been introduced to optimize engines and minimize fuel consumption without sacrificing one ounce of driving pleasure. Fuel consumption over the whole Audi A6 family has been lowered by about 15 percent.

The smallest gas engine is the 2.0 TFSI, a 125 kW (170 hp) turbocharged four-cylinder unit. On the other end of the spectrum is the 4.2 FSI, a 257 kW (350 hp) V8 engine. Audi V6 models can be equipped with one of its two new 2.8 liter FSI engines; the 140 kW (190 hp) or the 162 kW (220 hp). Both engines feature the innovative Audi Valvelift System (AVS), which manages the inlet valve timing so that there is more torque and less fuel consumption. Regardless of which 2.8 FSI engine the Audi A6 sedan is fitted, average fuel consumption is only 8.2 liters per 100 kilometers (28.68 US mpg) for the 190 hp, 6-speed manual shift or 8.4 liters per 100 kilometers (28.00 US mpg) for the 220 hp multitronic CVT.

With its 3-liter displacement and 213 kW (290 hp) power output, the V6 is a particularly exciting newcomer. Audi has designed the perfect package for each one of its engine. That's why the 3.0 TFSI is fitted with a supercharger. From now on "T" doesn't just stand for turbocharged - it stands for supercharged. Supercharger technology does not mean increased consumption - but the short intake paths do mean instantaneous response. And it's got full power build-up even at low engine speeds: from 2500 1/min to 4850 1/min, the torque curve is broad and flat at 420 Nm (309.78 lb-ft).

The 3.0 TFSI comes with tiptronic and quattro drive train. The Audi A6 sedan accelerates from 0 to 100 km/h (62.14 mph) in 5.9 seconds and keeps on going as it presses to its electronically-regulated maximum speed of 250 km/h (155.34 mph). This is the kind of performance that only an eight-cylinder engine would have been able to deliver a few years ago. At 9.5 liters per 100 kilometers (24.76 US mpg) on the EU cycle, the supercharged V6 is amazingly economical. The 3.0 TFSI's combination of dynamic performance and low consumption is one more example of Audi's successful efficiency strategy.

The Audi A6 TDI engines give further evidence of just how closely Audi has been able to align sporty performance and efficiency. Fuel is delivered by the extremely sophisticated and quiet system of common rails with rapid-action piezo injectors and an injection pressure of 1800 bar (26,106.79 psi). The two V6 TDI engines (2.7 TDI with 140 kW (190 hp) and 3.0 TDI with 176 kW (240 hp) have peak torques of 380 Nm (280.27 lb-ft) and 450 Nm (331.90 lb-ft), respectively.

At the lower end of the diesel program is the four-cylinder 2.0 TDI engine, which is available in two versions: the 125 kW (170 hp), expected in fall 2008, and the 100 kW (136 hp). The basic version is an especially efficient e-model known as the 2.0 TDIe, which uses a six-speed manual shift or automatic multitronic transmission to deliver 320 Nm (236.02 lb-ft) of torque to the front wheels. With multitronic it sprints from 0 to 100 km/h (62.14 mph) in 9.9 seconds, and continues on to a top speed of 204 km/h (126.76 mph). Yet its average fuel consumption with a manual shift gearbox is only 5.3 liters per 100 km (44.38 US mpg), equivalent to CO2 emissions of app. 139 grams per kilometer (224 grams per mile).

The key to achieving such exemplary values is the strategic deployment of innovative technologies. The power steering pump operates on demand; the alternator regenerates electrical energy when coasting thereby reducing load off the engine. By lowering the ride height by 20 millimeters (0.79 in) and other aerodynamic fine-tuning, the drag coefficient has been reduced to cD = 0.28.

The transmission can be used longer in the upper two gears. Any manual-shift Audi A6 with Driver Information System, even the 2.0 TDIe, can opt to have the shift indicator displayed in the instrument panel. The icon lets the driver know which gear is most economical under actual circumstances.

Audi quattro four-wheel drive is available on all engines with 140 kW (190 hp) or above and is standard equipment on high-end aggregates. The manual shift, 140 kW (190 hp) 2.8 FSI notwithstanding, this is the very latest generation quattro with the newly emphasized rear-end design. It gives the Audi A6 tremendous driving characteristics, remarkable grip and superior safety. Under normal conditions, the torque split is 40 percent to the front wheels and 60 percent to the rear. The mechanically-operated Torsen differential immediately diverts most of the power to the axle, providing better traction whenever the need arises - in extreme cases, up to 65 percent to the front or 85 percent to the rear.

In fine-tuning the Audi A6, two key objectives were identified - increasing its comfort while retaining its sporty character. With new large-diameter, front-axle shock absorbers operating within an optimized valve system, Audi engineers were able to achieve both goals. Every other aspect of the suspension set-up has been improved, including the automotive spring response.

The Audi A6 can be equipped with factory-fitted adaptive air suspension so that the driver can vary his response and the characteristics of the adaptive shock absorbers into three styles. High-powered engines come equipped with larger 17-inch wheel brakes. Audi can also be fitted with a tire pressure monitoring system, which is entirely wear-free and maintenance-free. The customer can opt for run-flat tires, which limit the car to 50 kilometers (31 miles) should there be a drop in air pressure.

Audi has integrated several new high-tech assistance systems. The new Audi side assist kicks in to help drivers when changing lanes at speeds over 30 km/h (18.64 mph), ensuring a stress-free and superior drive. Using radar sensors, Audi Side Assist is able to detect other cars up to 50 meters (164.04 ft) away: a signal on the outside mirror lights up should changing lanes pose a threat. Audi lane assist helps keep drivers in their own lane, radar-assisted adaptive cruise control keeps a steady distance to the vehicle ahead, and Audi parking system advanced has a rearview camera.

Since its debut in 2002, the Audi Multi Media Interface system (MMI) has been setting the standard for perfectly controlling any number of functions. The Audi A6 comes equipped with the latest MMI generation, including the top-of-the-line MMI Navigation plus. Its basic construction has not changed. The central control knob can still be found on the middle console between the front seats and the operation is still carried out using large buttons. The new joystick capping the control knob means the MMI Navigation plus can be operated even more intuitively.

MMI Navigation plus is an ultimate solution, pioneering in an entirely new system generation with high-tech portfolio and ground-breaking standards. Special features include a CD/DVD/Navigation combination drive with a 40 GB hard drive capacity which can be used to store MP3s and up to 5000 addresses.

With its 7-inch, high-resolution screen, the monitor on this ultimate navigation system is truly innovative. The image is rich in contrast and incredibly sharp even under difficult lighting conditions. It also has an optional TV tuner that receives digital programs (DVB-T) in perfect quality.

The new navigation system has another innovation. A new bird's eye picture mode shows landscapes in topographical relief - in full detail, complete with three-dimensional images of landmark buildings. The monitor has a new operating principle: when adjusting specific functions like air conditioning or seat heating, a pop-up window appears at the right rather than taking over the whole screen.

The upgraded Audi A6 will be available in German dealer showrooms as of mid-October 2008. Starting at 34,200 Euros for the Audi A6 2.0 TFSI sedan, Audi's initial list prices have remained virtually unchanged, despite all the extensive innovations.

The New Audi Q5

The new Audi Q5 combines the poise of a sports saloon with highly variable interior and versatile options for leisure-time and family use. Strong and efficient engines, quattro permanent all-wheel drive and agile running gear incorporating the innovative seven-speed S tronic dual-clutch transmission and Audi drive select control system have been brought together to create a performance SUV for all seasons and all surfaces.

The dimensions alone indicate that this is a SUV of all-new proportions. Measuring 4.63 metres long and 1.88 metres wide, the Audi Q5 is just 1.65 metres high, giving it a more purposeful stance than any of its competitors. What's more, this SUV sets another benchmark in its class with a low drag coefficient of 0.33.

With its elegant, flowing lines the design of the Q5 is perfectly in tune with the character of Audi as a brand. The front end is dominated by expressive headlights on both sides of the large single-frame grille; on request, they can be equipped with bi-xenon lamps and LED daytime running lights. Viewed from the side, the large wheels and rising edges are especially prominent features.

Crowned by a rail, the elegant slope of the roof underscores the slim, coupe-like styling. At the rear, the wraparound tailgate - made from aluminum like the bonnet - clearly identifies this SUV as a relative of its older brother, the Audi Q7. The tail lights are available with distinctive LED lighting technology as well.

Strong and efficient - the engines

The Audi Q5 launches with three engine variants - one petrol engine and two TDI units. All of the engines are direct-injection models with a turbocharger - characterized by outstanding performance, strong propulsive power and polished refinement while at the same time offering impressive fuel efficiency.

The 2.0 TFSI has been entirely redesigned. The four-cylinder engine unites three high-tech features - turbocharging, petrol direct-injection technology and the innovative Audi valvelift system for variable control of valve lift.

The high torque of 350 Nm is available at 1,500 rpm and remains constant up to 4,200 rpm, with performance peaking at 211PS. The Audi Q5 2.0 TFSI sprints from 0 to 62mph in 7.2 seconds, can reach a top speed of 138mph and averages 33.2mpg.

Drawing on four cylinders and two litres of displacement as well, the 2.0 TDI is superbly refined thanks to a new common-rail fuel injection system; like the petrol engine, it has two balancing shafts. With 350 Nm (between 1,750 and 2,500 rpm), this diesel engine delivers its typically strong response from an impressive 170PS. Combined fuel consumption of 42.1mpg is proof of Audi's successful efficiency strategy. The two-litre TDI catapults the Audi Q5 from 0 to 100 km/h (62.14 mph) in 9.5 seconds, peaking at a top speed of 204 km/h (126.76 mph).

The most powerful engine in the line-up is the 3.0 TDI. This V6 diesel engine delivers 240PS and 500 Nm of torque, which is available between 1,500 and 3,000 rpm. With outstanding response and refinement, it takes the Audi Q5 from 0 to 62mph in 6.5 seconds, accelerates to a top speed of 139mph and covers 36.6mpg on the combined cycle.

Seven speeds - the new S tronic

The 2.0 TDI transfers its power to a six-speed manual transmission. Audi has built innovative technology into both the 3.0 TDI and 2.0 TFSI - the S tronic, a new twin-clutch transmission with seven speeds. This high-tech component can execute gearshifts in just a fraction of a second while offering exceptional comfort and high efficiency. Drivers can let the seven-speed S tronic shift automatically or select gears manually, when desired with rocker switches on the steering wheel.

As in the new Audi A4, the position of the component units in the drivetrain has been altered in the Audi Q5 - the differential is located in front of the clutch, directly behind the engine. This solution, which made it possible to move the front axle much further forward, creates a long wheelbase and optimum distribution of axle load. It is precisely these features from which the Audi Q5 derives its unique strengths - good directional stability, high comfort and impressive dynamics.

The pioneer of all-wheel drive, Audi equips the Audi Q5 as standard with quattro permanent all-wheel drive. In normal running conditions, the transfer case distributes the power to the front and rear axle in a 40:60 ratio for a rear-focused style that enhances driving pleasure. When needed, the quattro driveline can deliver up to 65 percent of the power to the front axle and a maximum of 85 percent to the rear axle.

The latest generation running gear in the Audi Q5 also contributes to its outstanding composure. The five-link front axle and trapezoidal-link rear axle are made primarily from aluminium, the steering box below directs the steering impulse directly to the wheels. Large brakes ensure high retardation. The Audi Q5 will ride on lightweight lightweight alloy wheels ranging in size from 17 to 20 inches in diameter.

The new performance SUV from Audi offers precision, reassurance and comfort at the same time. Its electronic stabilization program (ESP) has been re-designed and enhanced with innovative functions such as a sensor that "tells" the ESP if a roof rack has been mounted, causing the Audi Q5's centre of gravity to be shifted higher in keeping with the roof load of up to 100 kilograms. If a roof rack is present, the ESP engages earlier in the handling limit. Without a roof load, the driver is free to tap into the full dynamic potential of the Audi Q5.

The Audi Q5 is suitable for all purposes and driving surfaces. Capable of towing up to 2.0 tons, this powerful vehicle delivers excellent performance in rough terrain as well. The standard hill descent control system makes it safe to navigate down steep inclines by regulating the preselected speed when driving at under 19mph. The ESP and its sub-function, the ABS, have special ranges for off-road driving. The ESP focuses on achieving maximum traction in off-road driving; the ABS automatically recognizes the consistency of the driving surface and selects the ideal strategy for sand, gravel or loose rocks.

The numbers speak for themselves: The Audi Q5's climbing capability of 31 degrees of incline is exceptional. The overhang angle is 25 degrees thanks to the short front overhang. The ramp breakover angle, determined by the wheelbase, is 17.5 degrees. Ground clearance is an impressive 20 centimetres, with a fording depth of up to 50 centimetres when driving through water.

Audi drive select - for more driving pleasure

An extensive package of high-end technologies makes the Audi Q5 even more driver focused. The optional control system Audi drive select guides the operation of various technology components and is available in several upgrade variants. At the touch of a button, the driver determines how much emphasis should be placed on comfort or agility. The MMI operating system offers a fourth mode, which can be individually programmed.

Audi drive select is available with two innovative components. One is an electronic controller for the shock absorbers, the other is Audi dynamic steering. Fitted with a superposition gear, it continuously varies the steering ratio and the power steering assistance depending on the speed driven - which means less steering effort is required when parking, and firm steering with low sensitivity at higher speeds. At the handling limits, the dynamic steering stabilizes the Audi Q5 in conjunction with the ESP by means of instantaneous steering interventions.

The new performance SUV from Audi leaves the production line with a generous range of standard equipment including an audio system with eight speakers. A highly contemporary modular system of components is available for multimedia options - the highest upgrade level features a Bluetooth telephone, a DVD drive, a TV tuner, an intelligent speech control system, an iPod interface and a top-of-the-line sound system from the Danish specialists Bang & Olufsen. The excellent navigation system boasts a high-resolution monitor for new, three-dimensional representation of maps. The hard disk from which the system reads can also save music files in MP3 format.

The assistance systems: Straight from the luxury class

On request, the Audi Q5 can also be equipped with an array of high-tech, onboard systems taken directly from the premium class to make driving an even more relaxed experience. These include the Audi parking system advanced with rearview camera, Audi lane assist (the lane departure warning system) and Audi side assist, which warns of hazards when changing lanes. Adaptive cruise control maintains a constant distance between the performance SUV and the vehicle in front.

Additional high-tech extras for the Audi Q5 include the advanced key for keyless access to the vehicle, a tyre pressure monitoring system, the large panoramic glass sunroof with additional tilting function, the triple-zone climate control system, sun blinds for the rear side windows, the dynamic cornering light system known as Audi adaptive light, an electric tailgate and a swivelling trailer hitch. The high-beam assistant automatically switches between the high and low beams. On request, the front seats can be electrically adjusted, heated and ventilated - Audi offers the extras from the luxury class in its new performance SUV here as well.

Concept: Audi TT clubsport quattro

An open cockpit, an engine producing more than 220 kW (300 hp) and a host of technologies borrowed from the world of motorsports - the Audi TT clubsport quattro is an uncompromising driving machine. Audi is presenting an updated version of the spectacular showcar and sensation of 2007 at the Wörthersee Tour, the big meet for Audi and VW enthusiasts in Reifnitz (Kärnten), Austria, from May 21 to 25.

Purism at a premium level - this was the goal that the designers and engineers set themselves for the Audi TT clubsport quattro. The low windshield is extremely flat. The A-pillars are nearly invisible, making the continuous window strip appear to be a single casting. Instead of the compartment for the soft top there are two humps behind the passenger compartment - the lines of the showcar painted in Suzuka Gray, pearl effect are intensely evocative of a speedster. Mounted in front of the humps are two massive rollover bars, which together with the strong A-pillars protect the driver and passenger if the car should roll over.

The front end is dominated by the powerful single-frame grill painted in high-gloss black. Beneath the headlamps, which feature a strip of LED daytime running lights, are large air inlets covered by horizontally split black grills.

A distinctive spoiler lip optimizes downforce. When viewed from the side, the sharp contours in the sill area are every bit as striking as the boldly accentuated wheel wells, which house impressive (polished) 9x19 inch wheels shod with 255/35 tires. The track was widened by 66 millimeters (2.60 inches) versus the production TT. The rear bumper is designed as a diffuser. The fascia between the two large tailpipes of the stainless steel exhaust system emphasizes the horizontal lines and makes the car look even wider from behind.

The purist style of the exterior carries over to the interior of the Audi TT clubsport quattro. The newly designed sill area emphasizes the width of the vehicle. The driver and passenger sit in racing bucket seats that offer excellent support even in extreme driving situations - on the race track, for example.

Typical Audi: aluminum in the interior

Typical for Audi is the generous use of aluminum in the interior of the showcar. The clubsport quattro sports a high-grip version of the flat-bottomed steering wheel from the production TT with aluminum shift paddles. The door pull handle and door opener are also made of aluminum, and their cut-out appearance emphasizes the lightweight design character of the concept car. The pedals also shine with aluminum.

The second distinctive feature of the interior of the TT clubsport quattro is the color orange. Leather in this color provides bright highlights to the arm rests, the sides of the center tunnel, the backs of the bucket seats and the instrument cowl. The orange and white graphics of the instrument cluster clearly distinguishes it from its counterpart in the production model.

The Audi TT clubsport quattro is a true sports car, and technology borrowed directly from the world of motorsports emphasizes this character. Even more power has been coaxed out of the 2.0 TFSI engine - the turbocharged four-cylinder gasoline engine breaks the magic 300 hp barrier. The exhaust system was designed to be particularly easy-breathing, and a powerful racing sound exudes from the oval tailpipes.

Audi high-tech: S tronic und quattro

The two-liter engine delivers its full power to an S tronic transmission. Thanks to its dual clutch, gear changes occur extremely quickly without interrupting the flow of power and thus go virtually unnoticed. The driver can change gears manually using the shift lever or the paddles on the steering wheel, or can choose a fully automatic mode. The quattro permanent all-wheel drive system transfers the power to all four wheels.

The powerful brake system from the new Audi TTS provides the stopping power. Its ventilated discs measure 340 millimeters (13.39 inches) up front and 310 millimeters (12.20 inches) at the rear.

The Audi TT clubsport quattro is a purist driving machine combining the performance of a sports car with the unique design language of Audi. Small-series production of this model cannot be ruled out.

The New Audi S3

The dynamic range-topping member of the A3 family sports new features, too. There is now a second top model on the market, with the Audi S3 Sportback joining the three-door Audi S3. Both versions are equipped with the same engine, the reengineered 2.0 TFSI with an output of 195 kW (265 hp). With 350 Nm (258.15 lb-ft) of torque available constantly from 2,500 to 5,000 rpm, the direct-injection, two-liter turbo catapults the three-door model from 0 to 100 km/h (62.14 mph) in 5.7 seconds (Sportback: 5.8 seconds); the top speed is limited electronically to 250 km/h (155.34 mph). Yet the S3's fuel consumption is astonishingly low, at an average of 8.5 liters per 100 km (27.67 mpg).

A six-speed manual transmission handles the business of getting the power from the engine to the standard quattro driveline; 18-inch wheels provide a firm grip with the road. The sport suspension holds the body 25 millimeters (0.98 in) lower and integrates lightweight aluminum components. Black brake calipers act on 17-inch disk brakes. Audi's compact premium sports model offers the reflexes of a top athlete. It reacts spontaneously to steering movements and its handling remains stable, precise and almost neutral right up to its physical limits. When coming out of a bend it veritably seems to dig its claws into the tarmac, enabling the driver to start accelerating again at the earliest possible moment.

Like the A3, the S3 has been optically modified and is clearly distinguished by a number of striking lines, for example on the radiator grille, on the bumpers and on the roof spoiler, as well as by the aluminum-look exterior mirrors. Inside, the driver and front passenger are greeted by sport seats with cloth, Alcantara/leather or all-leather upholstery; Audi exclusive bucket seats are available as an option. Aluminum pedals, three different styles of inlay and a black or silver headlining create an exclusively sporty look. Deluxe automatic air conditioning, an anti-theft alarm and xenon plus headlamps with LED daytime running light extend the range of standard features.

Concept: Audi A3 TDI clubsport quattro

A TDI from Audi is more than just another diesel - it is, in fact, a dynamic power unit and a rich source of driving pleasure. At the 27th annual Lake Wörther Tour being held in the Austria province of Carinthia from May 21-25, Audi is demonstrating the potential of TDI technology with a very special concept study: the Audi A3 TDI clubsport quattro is powered by an engine delivering a whole 165 kW (224 hp) from its displacement of two liters. And with a torque of 450 Nm (331.90 lb-ft), it endows the premium compact model with the pulling power of a sports car.

The Audi A3 TDI clubsport quattro qualifies as an uncompromising sports machine in all other technical respects too. A six-speed transmission channels the engine's power to the quattro all-wheel drive. 20-inch wheels keep the drive force glued to the road; behind the wheels at the front can be found brake disks made from carbon-fiber-reinforced ceramic. Using the Audi drive select driving dynamics system the driver is able to adjust the throttle response and exhaust sound characteristics, the steering's power assistance, the ESP control and the damper characteristics as desired.

The dynamic image presented by the scintillating A3 study is rounded off by spectacular body styling and a high-class, sporty interior. Parts such as bolt-on wheel arch extensions and a large rear spoiler lend lasting impact to the exterior's looks; the interior is dominated by the racing bucket seats in the front and the open aluminum gear lever gate.

The drive train

The high-performance TDI under the bonnet of the Audi A3 TDI clubsport quattro is like nothing that has gone before it. From its displacement of just 1,968 cc, it summons up an output of 165 kW (224 hp). Torque - the true measure of effortless motoring ability - peaks at an exhilarating 450 Nm (331.90 lb-ft), which is on tap from just 1,750 rpm; in other words, the very bottom of the rev range. As for in-gear flexibility, the diesel model leaves its gasoline-powered rivals standing.

The mighty TDI bestows the Audi A3 TDI clubsport quattro - which tips the scales at just 1,475 kilograms (3251.82 lb) - with pulling power befitting of a sports car. The sprint from 0 to 100 km/h (62.14 mph) is over in a fleeting 6.6 seconds and the speedometer needle keeps rising all the way to 240 km/h (149.13 mph).

The four-valve sports engine is smart too; it responds spontaneously to the throttle and pampers the occupants with the low-vibration running of its mechanics. On an acoustic level, however, it proudly proclaims its abilities for all to hear: the exhaust system is a new development, with controllable resonance chambers on both tailpipes to amplify the rich, sonorous sound.

The engineers took as a basis the undersquare engine (bore x stroke = 81.0 x 95.5 millimeters) with an output of either 103 kW (140 hp) or 125 kW (170 hp), depending on the configuration, and added to it an optimized turbocharger. The advanced design of its blades allows it to supply more air; as in the series-production version, the variable geometry of the turbine's blades ensures spontaneous response.

The 2.0 TDI, which is managed by one of the most sophisticated control units currently available on the market, is brimming with high tech. Fuel injection is handled by a common-rail system with piezoelectric injectors and eight-hole nozzles. The high-precision metering of as many as five injections of fuel per power stroke has the effect of audibly reducing the noise level. The system operates at a pressure of 1,800 bar - this results in extremely fine atomization of the fuel which, together with the revised piston geometry, makes the combustion process a highly efficient one.

The engine's intake manifold houses swirl flaps that generate a tumbling action in the inflowing air; electric motors regulate the flaps' position so that this tumbling motion is always perfectly suited to the current load and engine speed. Two balancer shafts in the engine reduce the degree of vibration in the crank drive. The drive unit for the belt that propels the two camshafts has also been reworked with a view to improving the engine's acoustics.

The engine: low on emissions, high on efficiency

In its high-performance 165 kW (224 hp) version, the 2.0 TDI unit is still able to make use of a high proportion of recirculated and sharply cooled exhaust gas to achieve cooler combustion with lower oxygen levels - this brings about a substantial reduction in untreated nitrogen oxide emissions. The four-cylinder power unit already complies with the limits of the Euro 5 emissions standard, which is not due to come into force until September 2010 and whose foremost aim is to cut NOx emissions.

The ultra-efficient two-liter engine attains a power-to-displacement ratio of 83.8 kW (113.8 hp) per liter, and torque-to-displacement ratio of 228.7 Nm (168.68 lb-ft) per liter - figures which comparable gasoline engines are simply unable to match.

The Audi A3 TDI clubsport quattro has been designed strictly in accordance with the principle of maximum efficiency. Power is transferred by a compact, transverse-mounted six-speed transmission whose casing is made from lightweight magnesium. The short-throw gear lever can be moved swiftly and precisely through a classic open gate made of aluminum. The transmission ratios have been adjusted and the components reinforced to make allowance for the TDI engine's extremely high performance.

The engine's power is transferred to the road with virtually zero losses thanks to the quattro all-wheel drive. The system's key component is a multi-plate clutch which is positioned at the rear, thereby further optimizing the weight distribution. Under normal driving conditions, the electronically controlled and hydraulically operated clutch directs the engine's drive power to the front wheels; whenever necessary, however, an infinitely adjustable proportion of the propulsive force can be diverted rearwards.

When altering the power split, the plates inside the clutch are subjected to high oil pressure, pushing them together - a procedure which is completed in a matter of milliseconds thanks to a newly designed pressure reservoir for the pump. The quattro drive constitutes the perfect power transmission system for the mighty two-door model, significantly enhancing traction, handling characteristics, stability and straight-line running, whatever the weather.

The chassis

The Audi A3 TDI clubsport quattro comes equipped with a sports suspension that is more than capable of handling the formidable power. The front suspension - a classic McPherson layout - is pivoted on a light, high-strength aluminum subframe. A rack-and-pinion steering system with a direct ratio produces a sensation of close contact with the road. Power assistance is generated by an electromechanical drive unit for high efficiency, and its level decreases as the speed increases.

The rear suspension comprises four links per wheel which fulfill all manner of tasks. The trailing links absorb the propulsive and braking forces. As an aid to ride comfort, their configuration is relatively soft. The connections to the three transverse links, on the other hand, are rigid in order to direct transverse forces into the body with absolute precision. In this instance, the coil springs and shock absorbers are also kept separate from one another. The set-up is decidedly firm, while the body has been lowered by 36 millimeters (1.42 inches) compared to the standard production version.

The Audi A3 TDI clubsport quattro rides on impressive ten-spoke wheels measuring 9 J x 20, which are in turn shod with size 265/30 ZR 20 tires.

Whereas the brakes at the rear wheels were borrowed from the series-production A3, their counterparts on the front would not be out of place on a supercar: six-piston calipers exert a vice-like grip on brake discs measuring 356 millimeters (14.02 inches) in diameter. The discs themselves are made of a material which has been of tremendous value to the aerospace industry, consisting of high-strength carbon fibers embedded in hard silicon carbide.

They have a lightweight construction, can withstand extreme levels of strain, are corrosion-free and have a service life in the region of 300,000 km (approx. 186,400 miles).

TDI engines - the superior drive force

Power, refinement and efficiency - ever since they first made their debut in 1989, the TDI engines from Audi have been synonymous with a sophisticated and smart form of sportiness, blazing a trail for the rest of the motor industry to follow. The triumphant advance that the diesel-engined Audi R10 TDI racing car has been enjoying for two years now on race tracks around the world has delivered a powerful demonstration of its potential.

The R10 TDI has been causing a sensation since spring 2006, with its twelve-cylinder diesel powerplant ushering in a new era in the world of motor racing. The 5.5-litre TDI develops in excess of 1,100 Nm (881.32 lb-ft) - a torque figure that positively eclipses its gasoline-powered competitors. Its output of 650 hp translates into a top speed of around 330 km/h (205.05 mph).

One of the fortes of the R10 TDI is its low fuel consumption. And fewer fuel stops means a higher average speed - the car's high efficiency was one of the key factors in its two successive victories at the Le Mans 24 Hours. Frank Biela (Germany), Emanuele Pirro (Italy) and Marco Werner (Germany) won in 2006 and 2007 in emphatic style. It is a similar story in the American Le Mans Series, where the diesel race car bearing the four Audi rings has racked up a string of successes, easily securing the constructors' title in the large LMP 1 category in both years.

For the first time ever, superior TDI power from the race track can now be experienced in a series-production sports car - both the Audi TT Coupé 2.0 TDI quattro and the Audi TT Roadster 2.0 TDI quattro feature a diesel engine. The two-liter four-cylinder unit delivers dynamic thrust, with a power output of 125 kW (170 hp) and 350 Nm (258.15 lb-ft) of torque. Despite this, the TDI engine in the Coupé burns just 5.3 liters of fuel per 100 km (44.38 mpg) on average - a benchmark value in the sports car segment.

Also on show at the Lake Wörther Tour is the Audi R8 TDI Le Mans, whose drive train technology is closely related to that of the R 10 TDI. The high-performance sports car is driven by a six-liter V12, whose 368 kW (500 hp) of output and 1,000 Nm (737.56 lb-ft) of torque propel the world's most powerful series-production TDI model to a top speed far in excess of 300 km/h (186.41 mph).

The New Audi A3

The Audi A3 and A3 Sportback, the premium compact models from Audi, are raising their sporty profile with a raft of improvements and an accentuated design. Innovative technologies such as the S tronic dual-clutch transmission with seven speeds and Audi magnetic ride, the suspension control system, makes for even greater driving pleasure. Its sharper, more striking design lends even greater expression to the A3 family. Additional equipment features, such as the Audi parking system at front and rear, the parking assistant and the reversible loadliner, also add to the appeal of these models. The Audi S3 developing 195 kW (265 hp) is now also available as a Sportback version, a new top model that rounds off the range. Shipping will commence in the summer, with prices starting at € 20,350.

The Audi A3 created the entirely new market segment of the premium compact car when the first-generation model made its debut in 1996. The brand with the four rings has been notably successful in that market segment and has since built 1.9 million units of the Audi A3. After four successive record-breaking years, the one millionth specimen of the second-generation A3 - which went into production in 2003 - left the assembly line just a few days ago. Audi is now solidifying its lead.

The interior: sporty elegance

Inside the car, too, the designers fine-tuned the atmosphere of sporty elegance. Aluminum-look elements on the air vents, light switches and center console accentuate the premium character of the Audi A3 and A3 Sportback. The switches and controls beneath the audio system have been given a new, modern look. The instruments have black dials and red needles to reinforce the impression of precision and advanced technology, and a shift indicator displays the recommended gear in any given circumstances in the driver information system. The driver information system's display and the time, date and distance display - standard with the Ambiente and Ambition equipment lines - shows the information in high-resolution white type. The leather sport steering wheel for the Ambition line has new aluminum trim clips, and Audi can supply a flat-bottomed leather sport steering wheel for the Ambition as an option.

New inlays for the Attraction and Ambition, new colors and a wide selection of upholstery fabrics enhance the interior through their sportiness, impressive material quality and meticulous crafting. The upholstery range even includes Fine Nappa leather for the sport seats.

The A3's trunk is the roomiest in its class, at 350 to 1,080 liters (12.36 to 38.12 cubic ft.), with an even larger 370 to 1,100 liters (13.06 to 38.83 cubic ft.) on the A3 Sportback. On quattro versions the trunk floor is a few centimeters higher, to accommodate the special rear axle. A particularly ingenious feature is available for the front-wheel-drive versions - a sturdy, reversible loadliner that is a practical, easy-to-clean tray e.g. for carrying wet items, which can be removed from the car as a carrying tray. Audi can also supply the options of roof rails and a panoramic sunroof for the versatile A3 Sportback.

Powerful drive: the engines

As before, Audi is bringing the A3 and A3 Sportback onto the market with eight different engines - five gasoline and three diesel versions. Six of them are pioneering four-cylinder direct injection units with turbocharging. Their abbreviations TFSI and TDI encapsulate the strengths of Audi's engine technology - performance, high torque, dynamism, refinement and efficiency.

The 1.6 unit develops 75 kW (102 hp), the 1.4 TFSI 92 kW (125 hp), the 1.8 TFSI 118 kW (160 hp) and the 2.0 TFSI 147 kW (200 hp), while the 3.2 quattro with its six cylinders musters 184 kW (250 hp). The 1.9 TDI delivers 77 kW (105 hp) and the 2.0 TDI 103 kW (140 hp) or 125 kW (170 hp), depending on specification. Both two-liter diesel engines have been extensively reengineered - a new common rail injection system now assures ultra-refined running.

The 1.6-liter gasoline engine can also be supplied in conjunction with manual transmission for low-cost running on ethanol E 85 fuel. The diesel with an output of 77 kW (105 hp) is the power unit of the extremely efficient 1.9 TDI e version which, thanks to special fine-tuning measures, clocks up 100 kilometers on a mere 4.5 liters of diesel (52.27 mpg). Most of the other engines likewise slash fuel consumption by as much as 15 percent. The 1.8 TFSI and the technically closely related 2.0 TFSI have been frictionally optimized and have new cylinder bores, pistons and oil pumps.

High tech from Audi: the new transmissions

The range of transmissions has been extended and become even more appealing. Almost all engine versions are supplied as standard with six-speed manual transmission. The 1.6 and 1.9 TDI are outfitted with five-speed manual transmission, and the 3.2 is available exclusively with the S tronic dual-clutch transmission, now also available optionally for all engine versions. The high-tech S tronic changes gears with extreme speed and smoothness. The driver can set it to operate in a fully automatic mode or change gears manually - either at the selector lever or with the standard shift paddles on the leather sport steering wheel (from 103 kW/140 hp).

The S tronic on the six-cylinder engine, the 2.0 TFSI and the diesel versions has six speeds, whereas the 1.6, the 1.4 TFSI and the 1.8 TFSI feature a newly developed seven-speed S tronic. Both its clutches are dry-running - an innovative approach. This means that they do not need a separate oil supply, further adding to their already impressive efficiency. The seven gears are closely spaced for a sporty response, though the top gear is sufficiently high-geared to reduce the engine speed, cutting fuel consumption as a result.

The quattro versions, which put the A3 in a different league to the other players in the premium compact class, likewise have even more to offer. The all-wheel-drive system is available for five engine versions - for the 1.8 TFSI, the 2.0 TFSI, the 3.2 (as standard) and the two 2.0 TDI versions. In its latest technical form the central hydraulic multi-plate clutch responds even faster when the engine's power needs to be redistributed between the front and rear wheels. This increases stability, traction and driving pleasure for the driver.

The standard-fit dynamic suspension, too, provides safety, dynamic handling and comfort all rolled into one. The captivating precision with which the Audi A3 and A3 Sportback handle and their well-balanced character owe a great deal to elaborate concepts such as the four-link rear suspension and the efficient electromechanical power steering. There is optional sport suspension that supports the body 15 millimeters (0.59 in) lower; it is standard on the Ambition, in conjunction with 17-inch alloys. The option of acoustic glass for the windshield (standard on Ambiente) enhances occupant comfort and improves the car's acoustic behavior.