
Jaguar calls the XKR-S the company’s “most responsive, powerful, agile, and driver-focused production car.” It’s also the quickest ever. Yes, it’s quicker and more potent than even the 1992–94 XJ220 supercar.
Stout claim, but the numbers back it up. The twin-turbo 3.5-liter V-6 in the XJ220 we tested 18 years ago [November 1993] generated 542 horsepower and 475 pound-feet of torque.
The supercharged and direct-injected 5.0-liter AJ V-8 propelling the XKR-S huffs up 550 horsepower at 6500 rpm and 502 pound-feet of torque between 2500 and 5500 rpm. Throttle response is instantaneous and linear, and the aural accompaniment is habit-forming.
Like the other XKs, the XKR-S employs a responsive six-speed automatic (with paddle shifters for...