The 2006 Chevrolet Corvette Z06 is the best American sports car on the market, a beautiful machine equipped with explosive performance but that can also be used as a daily driver without muss or fuss. The Corvette Z06 has a 7.0-liter aluminum V8 making 505 horsepower, giving it a slight edge over its direct rival, the Dodge Viper, though the ‘Vette’s torque rating is lower. At $65,690, the more civilized Z06 also undercuts the Viper by more than $20,000. Chevrolet has long been rumored to be working on a higher-horsepower Corvette dubbed “The Blue Flame.”