Jaguar's stonking new XKR bared

We showed you a glimpse of it last month -- now here's Jaguar's XKR flagship coupe in all its glory.

Based on the slinky new XK that debuted internationally last year, the newcomer retains the aluminium monocoque body structure of the 'entry-level' model, but performance is lifted to an altogether more elevated plane, courtesy of a supercharged 4.2-litre V8.

This engine is a derivative of the unit used in the Range Rover and Range Rover Sport, but -- as we predicted last month -- Jaguar's boffins have found a way to bump its output past the 300kW mark. To be exact, peak power stands at 306kW, while torque is an equally muscular 560Nm.

Jaguar boasts that the XKR's blown V8 and lightweight body structure (the 1665kg Coupe is 70kg lighter than its predecessor) means it eclipses the more expensive V10-powered BMW M6 on torque-to-weight ratio and virtually matches the Mercedes SL55 AMG on power-to-weight ratio.

The claimed performance figures are none too shabby, Jag quoting a 0-60mph (0-96km/h) split of 4.9 seconds, while top speed is an electronically governed 250km/h. Perhaps more impressive is the alacrity with which the 80-110km/h increment is dispatched -- a scant 2.5 seconds is all it takes.

The only transmission offered is a six-speed auto, but it's a far superior device to the clumsy J-gate tranny that marred its predecessor. The new auto is essentially the same ZF unit available in the Ford Falcon and Territory, and it can be left to its own devices or controlled via steering wheel-mounted paddles.

The XKR's dynamic package includes uprated springs and dampers and a recalibrated Computer Active Technology Suspension system that's claimed to bring sharper handling characteristics.

Also standard is an Active Exhaust System that's said to deliver sufficient refinement when in cruise mode "but a purposeful V8 roar under hard acceleration".

Visual clues that this cat's packing a blower include a sportier mesh grille, bespoke front bumper, louvred bonnet, unique aluminium-effect side power vents, quad exhausts and 'Jupiter' design 19-inch alloy wheels. In case these rims aren't bling enough, you can fork out for the optional 20-inch 'Cremona' hoops.

The interior goodies list runs to an aluminium 'weave' design on the fascia (polished burr walnut is optional at no extra cost -- it is a Jag, after all) and XKR sports seats. It also comes with satellite navigation, Bluetooth telephone, touchscreen display and keyless start.

All in all, sounds like a tempting package. Is it tempting enough to win buyers who might be otherwise be inclined to plump for a Mercedes SL 500 or BMW 650Ci? We'll let you know after our first drive -- when it happens. Watch this space…