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Lamborghini Aventador J at 2012 Geneva motor show

There maybe other Italian sports car manufacturers looking to hog the limelight at the 2012 Geneva motor show (and Ferrari and its 730bhp F12 is one of them) but Lamborghini will vie for attention with the Aventador J. A two-seat, open top speedster based on the Aventador LP700-4, it has some intriguing bits of carbonfibre tech and highly individual design. Named 'J' after the FIA’s Appendix J that governs the tech spec of race cars in certain classes, it’s proper bedroom wall material – but little boys and girls are unlikely to ever see it on the road as it’s a one-off and will go to a lucky owner after its appearance at Geneva.

Jag GT3 racer hints at 500bhp XKR

By Phil McNamara First Official Pictures 06 November 2006 09:48 Jaguar XKR GT3: the lowdown This is the Jaguar XKR GT3, a 550bhp, race-fettled XK which will campaign in the 2007 FIA GT3 series. But the big news is that its uprated V8 engine is bound for a roadgoing XKR, to propel Jaguar up the power league and into the realm of Merc's 510bhp SL55 AMG and BMW's 500bhp M6. Apex Motorsport will design, develop and campaign the XKR GT3, shown here in an official artist's impression.

Nissan BladeGlider concept: in pictures

Petrolheads! Nissan has launched a concept that shows cars of the future can be entertaining to drive – even if it’s an electric vehicle. It’s the lightweight, aircraft-inspired, Deltawing-shaped Nissan BladeGlider.