The XKR-S GT was a limited production variant of the 2nd Gen XK, with a worldwide construction of only 45 examples. They came with the 5.0L supercharged V8 engine from the XKR-S but tuned-up to produce 550hp and 502 lb-ft. Other upgrades included carbon ceramic brakes, racing suspension and full bolt-in roll bars. In terms of design, these limited edition models had several aero effects with bigger air ducts and front and rear spoilers. The XKR-S GT was only built as a coupe, and came painted in one color: Polaris White with black racing stripes.