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The 25th Anniversary Edition is a hardened up version of Callaway's Corvette SC757, which in turn is based on a C7-generation Corvette Z06. It features a supercharged V8 that pumps out 757-horsepower and 777 pound-feet of torque. The supercharger is a GenThree Callaway unit with the company's TripleCooled intercooler system. A high-flow intake system feeds that beast. Callaway's Level Two HD Cooling System also helps it avoid the overheating issues that plagued C7 Z06s.
1966 corvette
Despite its popularity, the second-gen Corvette holds the record for the fewest number of production years of any generation Corvette. The most valuable examples of the C2 Corvette live sort of like "bookends" at the start and finish of second-gen production.