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The No. 4 C7.R Corvette Race Car at Sunset in Daytona Beach, Florida
The C7.R Corvette by Pratt & Miller is one of the winningest race cars in modern history. Explore what makes this Corvette a winner on race day, and discover the connection between the C7.R and the seventh-generation Chevy Corvette Z06. At the core of the C7.R Corvette is a direct carry-over from its predecessor - the same 5.5 liter engine that was developed during the C6.R's successful tenure in both the American Le Mans series and at The 24 Hours of Le Mans. 
In 2006, the company behind the Corvette C6.R pulled out all the stops and developed a Corvette (based on a Z06 donor car and a lot of amazing engineering) that featured an unprecedented amount of horsepower and torque under its hood while packing ultimate luxury inside its ultra-wide carbon-fiber body. The car, which was revealed at the SEMA show in 2007, was called the C6RS Corvette.