The XKR-S is so eloquent and so tamed, but so fierce when you get on it. The vehicle feature Jaguar’s 5-liter AJ-V8 with 550 horsepower and 502 pound-feet of torque. That’s an 8% and 9% respective increase from the performance of the XKR. It darts from 0 to 60 mph in 4.2 seconds and shifts power through an automatic 6-speed transmission with steering wheel embedded shifters.