Audi is developing TT RS Plus Coupe Quattro 2.5

Article by Christian Andrei, on March 11, 2011

Audi may soon launch the so-called TT RS Plus Coupe Quattro 2.5, a more potent version of the RS Coupe Quattro that delivers 340hp, according to a leaked document published by WorldCarFans.

It’s believed that the new model can develop up to 360hp, giving it an extra 20hp that could lead to much higher performance levels if Audi also succeeds at reducing the car’s overall weight. Audi has not released the official details but the leaked document implies that the launch will probably take place this May.

It’s also highly likely that the new variation of the TT RS Coupe will be exclusively offered to the European market, as the U.S. already delivers 360hp even as power is provided by the same 2.5-liter TFSI turbocharged engine.

Audi hasn’t released the complete technical specifications of the American version but it’s expected that its performance figures are better than the European model. It can go from zero to 100 km/h (62 mph) in only 4.6 seconds, while the top speed is electronically limited to 250 km/h (155 mph). 

Considered as the first classic sports car in the Audi RS family, it was conceived and developed by quattro GmbH as a pure, no-holds-barred car. Its turbocharged 2.5-liter engine is mated to a new six-speed manual transmission that allows for a more precise and easier operation, mainly thanks to its specially designed shift lever that enables short shift travel. This new six-speed manual transmission also boasts of a spread of the gear ratios as well as a high efficiency ratio.

As standard, the new Audi TT RS is equipped with a quattro permanent all-wheel drive which core -- an electronically controlled, hydraulic multi-plate clutch -- is placed at the rear axle. When needed, clutch could send ample torque input from the front wheels to the rear wheels. The plates of the clutch are pressed by a powerful electrical pump in just milliseconds via hydraulic pressure.

This quattro powertrain -- boasting of a heavy-duty constant velocity joint before the propeller shaft as well as a heavy-duty compact rear-axle differential – allows the new Audi TT RS to exhibit excellent traction, superb stability and mesmerizing dynamics. As for the chassis, what’s underpinning the Audi TT RS is an evolution of the one that underpins the Audi TT. It features a four-link rear suspension that takes care of longitudinal and lateral forces separately as well as a highly efficient electromechanical steering and a power steering that adjusts to the car’s speed.

The new Audi TT RS has a body made from aluminum (front) and sheet steel (back), allowing for a well-balanced axle-load distribution, and excellent rigidity, precise handling and superb crash safety. The body of the new Audi TT RS is lowered by 10 mm (0.39 inches), thanks to a standard sports chassis that comes with tightly tuned springs and shock absorbers. Customers may avail of the optional Audi magnetic ride adaptive damping system that allows drivers to choose any of the two available modes -- Dynamic and Comfort -- for the shock absorbers with a push of the Sport button.

Dynamic mode paves transforms the Audi TT RS into a road-hugging machine, while Comfort mode offers a balanced ride suitable for long trips. Drivers could also switch off the vehicle’s Electronic Stabilization Program (ESP) partially or completely. In Sport mode, engine intervention over traction is eliminated with brakes engaging later than usual. Meanwhile, the second mode fully deactivates the ESP.

Connecting the Audi TT RS to the road are its reliable 245/45 tires hugging 18-inch wheels. Taking care of deceleration and stopping power is a braking system featuring ventilated disc brakes measuring 370 mm (14.57 inches) at the front and 310 mm (12.20 inches) at the rear. To allow for faster and quicker dissipation of heat from the brakes, Audi employed perforated front friction rings that are linked to the aluminum brake discs by hollow pins. These aluminum brake discs are encircled by black four-piston aluminum brake calipers with RS logos.

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