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.

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.

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).