GM has unveiled the second-generation C6.R, which is based on the Corvette ZR1. Full details inside.

GM has unveiled the second-generation C6.R, which is based on the Corvette ZR1.

Designed to compete in the unified GT class in the 2010 American Le Mans Series and the GT2 class at the 24 Hours of Le Mans, the C6.R will race against Aston Martin, BMW, Porsche and Ferrari (just to name a few).

As specified by GT rules, the C6.R uses many production-based components from the ZR1. Carry over items include the body design, aerodynamic package, aluminum frame, chassis structure, and steering system.

Power comes from a naturally aspirated 5.5-liter V-8 with 485 hp (362 kW / 492 PS), instead of the ZR1's supercharged 6.2-liter V8 with 638 hp (476 kW / 647 PS). To compensate for the 153 hp (114 kW /155 PS) missing ponies, the Corvette Racing team put the C6.R on a strict diet. It weighs 2745 lbs (1245 kg), which is 579 lbs (263 kg) less than the standard ZR1.

Besides the new engine, the C6.R features a revised suspension, steel brake discs (instead of carbon-composite rotors), a 26.4 gallon fuel tank (29 gallons in ALMS E85R spec), and 18-inch wheels outfitted with Michelin racing tires.

Check out the press release for additional information

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New Corvette Racing 2nd Generation C6.R based on ZR1