Jaguar XKR - 174mph Speed Pack

Jaguar's 174mph XKR was revealed at the Geneva motor show today.

What is it?
It's only Jaguar's fastest production car for 18 years. With a top speed of 174mph, the new XKR isnt quite as nippy as the XJ220 of 1992 (that could manage a massive 217mph), but it will be a comparative bargain at a fifth of the price.

How much?
The XKR's extra performance comes courtesy of an optional Speed Pack, which adds 3500 to the price of a standard XKR. That takes the total cost to 78,455.

The Speed Pack removes the electronic limiter that reins in the standard XKR when it reaches 155mph. By recalibrating the engine and transmission, and fitting a revised front splitter and larger rear spoiler, Jaguar has managed to improve high-speed stability and reduce lift, which makes the new top speed possible.

The XKR's Active Differential Control system is also set up to assist by reducing steering sensitivity as the speed increases.

XKRs with the Speed Pack get body-coloured side sills and rear diffuser, along with a chrome finish to the window surrounds, mesh grilles, and side vents.

Speed Pack buyers will also be able to choose from a palette of seven colours designed to 'complement' the performance potential of the car: Kyanite Blue, Liquid Silver, Lunar Grey, Polaris White, Salsa Red, Spectrum Blue and Ultimate Black.

Choose the Speed Pack and itll also open up another door to you, because youll have the option of the brand-new Black Pack. XKRs fitted with the Black Pack (which costs 4000) get 20-inch black alloys, gloss black finishing to the window surrounds and front grilles, while body-coloured front and rear spoilers complete the package.

Black Pack interiors will be trimmed with charcoal leather hides that can be personalised with a range of colour stitching. Interior finishes and veneers for the fascia and door trims available are: aluminium, dark mesh, dark oak and piano black.