Audi enters into the supercar world with a bang.  Based off the LeMans Quattro concept, the R8 features a 420 HP V8 good for a 0-60mph of 4.4 seconds and top speed of 186 MPH.   At 7,800 rpm the 4.2-liter engine delivers 420 bhp of power output. Peak torque is 317 lb-ft from 4,500 to 6,000 rpm. And no less than 90 per cent of this maximum torque is maintained consistently throughout a wide engine speed range from 3,500 all the way to 7,600 rpm. As a result of these qualities, the eight-cylinder power unit provides maximum thrust in virtually any driving situation.  Since it's an Audi, it features quattro permanent all wheel drive for maximum grip and launching capabilities. 

The 2011 Audi RS5 unveils the next generation of Audi Quattro all-wheel drive: a crown-gear differential. The self-locking crown-gear center differential is compact and lightweight Ð and attains a high efficiency ratio.

Thanks to its package of plates, the differential can widely vary the distribution of torque between the front and rear axles. If necessary, up to 70 percent can flow to the front or as much as 85 percent toward the tail end. The 40:60 ratio of the standard rear-biased configuration ensures sporty handling.

This new differential operates in conjunction with electronic torque vectoring, which affects all four wheels. If one of the inside wheels becomes imbalanced while the vehicle is at its operational limits, then the system slightly decelerates the wheel to obviate wheel spin. This results in terrific traction on the one hand while generating a yaw moment which aids cornering.

The RS5 is powered by a high-revving 4.2-liter V8 putting out 450hp @ 8250rpm and 318 lb-ft of torque at 4000rpm. Mated to a 7-speed S-Tronic transmission, the RS5 rips from 0-60mph in just 4.5 seconds and continues all the way up to 174mph if you nicely ask Audi to remove the limiter.

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The TT-S is the top of the TT model line and features a 2.0 liter TFSI Turbocharged Inline-4 producing 272 HP and 258 lbs. of torque.  When combined with the TT-S's low weight of 3075 lbs., the result is a 0-60MPH dash of 5.2 seconds and electronically limited top speed of 155MPH.  It's available as both a 2+2 coupe and roadster and features an array of technologies including Audi's magnetic ride adaptive dampening system, an optional dual clutch S stronic automatic transmission, and of course Audi's famous Quattro All Wheel Drive System.

The magnetic ride system  gives the driver the choice of two characteristic settings: Standard mode is designed for a well-balanced, comfortable ride, whereas in the Sport setting the TTS harnesses all of the potential of its sports suspension which lowers the body by 10 millimeters (0.39 in.) to deliver uncompromisingly dynamic handling. Its front suspension is mainly made of aluminum, while the efficient technology of the precision electromechanical steering also helps to improve fuel consumption considerably. The TT-S is safely brought to a standstill by the high-performance braking system with its 17-inch discs.

The Audi TTS instantly stands out as the dynamic flagship of the TT model line. The standard 18-inch aluminum wheels are a highlight of the exterior design, as are the headlights, comprising newly designed bi-xenon units with LED daytime running lights. Inside, passengers are welcomed by deep-set sports seats trimmed in a mixture of leather and Alcantara, with Silk Nappa leather seat upholstery in four different color combinations available as an option. The gray instrument panel as well as the multifunctional steering wheel add further styling touches.

Audi has opted for a McPherson front suspension with lower triangular wishbones for the TTS. The suspension is largely made of aluminum, thereby reducing the unsprung masses. With a view to increasing rigidity, the subframe is bolted to the body at six points. The sensitive, high-precision power steering is driven electromechanically, a technology that improves fuel consumption by 0.2 liters per 100 km (0.716 mpg). The characteristics of the steering's power assistance have been adapted to reflect the dynamic nature of the TTS.

The four-link rear suspension offers considerable benefits for vehicle handling, as it is capable of dealing with the longitudinal and lateral forces separately from one another. All of the links are made from high-strength grades of steel, while modified bearings emphasize the taut feel of the TTS. The coil springs and shock absorbers are fitted separately from one another, meaning that they take up little space.

The TTS comes standard with 18-inch cast aluminum wheels that sport the five-arm parallel-spoke S design and are shod with 245/40-size tires. Further wheel variants are optionally available, including a new 19-inch cast aluminum wheel designed by quattro GmbH. The exceptionally dynamic top-of-the-line TT model comes equipped with a high-performance braking system. Large disks are fitted front and rear, with the front disks being internally ventilated too. Inside the black-painted calipers, which bear the TTS emblem at the front, are the sport brake pads. Audi has devised a second, sporty level for the ESP stabilization program which enables controlled drifting.

 

Performance		Engine and Drivetrain
0-30MPH: 0-60MPH: 5.5 seconds 0-100MPH: 0-1/4 Mile: Top Speed: 155 MPH (limited) Skidpad: Slalom: 0-100MPH-0: Breaking 70MPH-0: Breaking 100MPH-0:		Naturally Aspirated V6 Horsepower: 250 @ 6300 RPM Torque: 236 lbs. @ 4800 RPM Layout: Front Engine/AWD Displacement: 3189 cc Redline: Transmission: 6 Speed manual
Dimensions		Miscellaneous
Weight: 3152 lbs. Length: 162.9 in. Width: 79.8 in. Height: 52.7 in. Front Brakes:  Rear Brakes:  Front Wheels/Tires: Rear Wheels/Tires:		Price: EPA City/Highway: