The stunning new Jaguar XKR Special Edition delivers a significantly raised maximum speed – 174mph (280km/h). Now, in Special Edition guise, the Jaguar XKR’s top speed climbs significantly from an electronically limited 155mph (250km/h) to 174mph (280km/h) thanks to the addition of the Speed Pack. Allied to that remarkable engine is an advanced six-speed automatic transmission with steering-wheel mounted paddles, lightweight aluminum body structure and a range of computer-controlled systems including Active Differential Control and Adaptive Dynamics that ensure the supercharged car accelerates even faster.