How fast is it? When outfitted with the optional ZTK Performance Package that adds a high-downforce rear wing, stiffer springs, various aero pieces, and a set of super-sticky Michelin Pilot Sport Cup ...
An engineer explains:What makes the Corvette ZR1's engine so powerful? The new ZR1 is quite the hot car, aptly dubbed an American supercar — though we'd wager it's a supercar, period ...