Jaguar XKR-S

Jaguar's most muscular production car, the XKR-S presses the stack with more power, a revised and stiffened suspension and special styling touches inside and out. The heart of the XKR-S is its supercharged 5.0-liter V8. This twin-cam, direct injected unit makes 550 horsepower and 502 lb-ft of torque, levels that surpass even those of Jaguar's XJ220 supercar from the early 1990s.