2010 Jaguar XK & XKR
Like the XFR sedan, the XK coupe and convertible receive a new version of Jaguar's AJ-V8 engine for 2010. Displacement rises from 4.2 to 5.0 liters, and in normally aspirated form, power is up from 300 hp to 385 hp while torque increases by 70 lb-ft, to 380 lb-ft. All versions of the XK also now get the JaguarDrive gear selector - the rising and rotating knob that debuted in the XF - among other aesthetic and mechanical improvements. The XKR models also add hood scoops with the word "supercharged" scripted along the aperture, plus more aggressive grilles and front air scoops and special interior trim. With 510 hp, a broad torque curve, and a new electronically controlled limited-slip differential, the XKR has been transformed into a seriously fast grand tourer that is far easier to drive day-to-day than the BMW M6 and is decidedly sexier than the AMG versions of Mercedes-Benz's CL coupe and SL roadster.