Meet the fastest, most powerful Cadillac ever built: Cadillac CTS-V or CadZilla 550 horsepower at 6200 rpm. Supercharged 6.2-liter V8 (closely related to Corvette ZR1) 550 pound-feet of torque at 4000 rpm. Suede-like finish on steering wheel and shifter Recaro seats, black trim. 19-inch ...