Jaguar XKR-S 2011 The supercharged, direct-injection 5.0-liter V-8 is boosted to roughly 542 horsepower and 501 pound-feet of torque, a gain of 32 horsepower and 40 pound-feet of torque. Jaguar says the power allows the new XKR-S to sprint from 0-60 in a blistering 4.2 seconds, run from 0-100 mph in 8.6 seconds, and hit a top speed of 186 mph.