Jaguar teases buyers with forbidden fruit XKR-S GT

Jaguar has unveiled an ultra-exclusive and monstrously fast version of its XKR-S, badged the GT – but we're afraid there's some good and bad news.

We'll start with the good: under the bonnet of the winged racer is a supercharged 5.0-litre V8 engine packing a mighty 542bhp and 680Nm of torque. That's enough to see the bruiser hit 60mph in 3.9 seconds and achieve a limited top speed of 186mph.