Jaguar XK/XKR (X150): PH Buying Guide - Pistonheads.com
On sale in 2006, the XK (X150) Coupe and Convertible followed the the X350 XJ by using an aluminium bonded and riveted monocoque with aluminium body panels. There are only two welds in the entire car, one either side of the roof. This made the X150 90kg lighter than the previous steel-bodied X100 and it's stiffer too, with the second generation Coupe and Convertible 50 per cent and 31 per cent more rigid than their predecessors respectively. At launch, Jaguar retained the 300hp 4. 2-litre V8 from the previous car in naturally aspirated form. The XKR arrived shortly afterward with a supercharged variant of that engine, though there was also a new fuel injection system to help with emissions, plus variable valve timing and a twin air-intake system. The 300hp XK covered 0-62mph in 5. 9 seconds and the 420hp XKR needed only 4. 9 seconds. For 2008, Jaguar introduced the XKR-S as a limited run of 200 cars. Top speed was raised from a limited 155mph to 174mph, the aerodynamics were improved and larger Alcon brake discs were also added. It's one of few cars where pictures don't do it justice. I am lucky enough to have an XKR Convertible and it is the best car I have had. Source: www.pistonheads.com
