The 2012 Jaguar XK is a performance-oriented luxury grand tourer available in coupe and soft-top convertible trim levels. The base XK is powered by a 5.0-liter V8 engine that produces 385 hp and 380 lb-ft of torque. Upgrading to the XKR model grants the driver a supercharged version of the base engine, producing 510 hp and 461 lb-ft of torque. For even greater performance Jaguar offers a XKR-S model, tuning the performance of the supercharged V8 to yield 550 hp and 502 lb-ft of torque, for a 0-60 time of 4.2 seconds. All models utilize a front engine-RWD layout and a 6-speed automatic transmission. Fuel mileage falls within an EPA estimated range of 15 mpg city to 24 mpg highway, depending on engine selection. Features include bi-function HID xenon headlamps, heated exterior mirrors with auto-dimming electrochromic glass, front/rear parking sensors, keyless entry/start, steering-wheel mounted controls, hands-free phone capabilities, and touch-screen navigation. Safety is comprised of rollover protection, emergency brake assist, electronic brake force distribution, anti-lock braking, traction control, dynamic stability control, cornering brake control, advanced airbags, and tire pressure monitoring. The XK is backed by a 4-year/50,000-mile warranty.