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Modified supercars at SEMA 2013 in pictures

The SEMA tuning and modified car show held in that centre of American excess, Las Vegas, is a melting pot for all things automotive. From trucks and busses to family saloons and hatchbacks, aftermarket tuning companies go to work making the wackiest modified versions of every type of vehicle around, showing off their wares at SEMA. Not even supercars are off limits.

"Carry-on" engine will power Le Mans racer

NISSAN will this year compete in the famous Le Mans 24-hour race using a revolutionary 1.5-litre, 400bhp engine that’s small enough to qualify as carry-on luggage. The astonishing new technology produces more power per kilogram of engine weight than the 2014 Formula 1 engines, and what’s more it’s set to lead to road car technology. And while the engine block is too heavy to take onto a plane as hand luggage, its 50cm height, 40cm length and 20cm width makes it small enough.

Porsche – the boss goes

Porsche boss Wendelin Wiedeking quits Well, Wendelin Wiedeking is not just any old suit, but the man credited with taking Porsche from an ailing, one-model car maker to the cash-cow it became. But Wendelin has become a victim of his own success – and the current economic woes. At any other time in the last decade, Wendelin’s plans to swallow VW would have worked.