What Is It? Chevrolet SS What's Special About It? A modern interpretation of Chevrolet's high-powered sedans of the '60s, the SS combines an ultralow-profile design with some good ol'-fashioned American muscle for a five-passenger sedan that defies classification. An all-aluminum 6.0-liter V8 sends 430 horsepower and 430 pound-feet of torque to the rear wheels via a four-speed automatic. Displacement-on-demand technology allows the high-powered engine to shut down cylinders for better fuel economy while cruising. The suspension is a fully independent design that benefits from driver-adjustable shocks which can provide everyday comfort along with racetrack performance. Massive six-piston brake calipers grab...