Set for launch at the Geneva Motor Show on March 1 - almost exactly 50 years since the iconic E-type was first shown - Jaguar will launch the latest addition to its XK line-up, the XKR-S. With a 0-100mph time of 8.6 seconds and a top speed of 186mph, this is the fastest production Jaguar since the XJ220, and according to Jaguar: 'The most agile, responsive and driver-focused Jaguar ever'.

First on the list of upgrades is the XK's 5.0-litre supercharged V8, which has been tweaked to increase power to 542bhp and 502lb ft of torque. The exterior modifications are said to be 'aerodynamically-driven', with new bumpers, lower side skirts and fixed rear spoiler, as well as various other visual differences.

The Adaptive Dynamics system has also been reprogrammed to complement the stiffer springing and revised damping, making full use of the XK's lightweight but incredibly rigid aluminium body structure. Jaguar is also quite proud to boast the car's sub 300g/km CO2, the only car in this class to do so.

Full details and images of the XKR-S will be available on Geneva press day – March 1.