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The 15 most significant cars of the 2011 Frankfurt motor show

Over 100 new cars were unveiled at the 2011 Frankfurt motor show, but which are the most important? From production cars to concepts that will never be built, CAR's road test editor Ben Pulman, decides on the 15 most significant models premiered at the IAA...  1 – Land Rover DC100 concept Chunky and funky, it’s Land Rover’s Evoque, the Defender urbanised, modernised and stylised for the 21st century. Range Rovers have become too ‘bling’, but the DC100 has the restrained elegance of the Disco 3 – we’ll ignore its bright yellow sister, the speedster-style DC100 Sport.

Car 'not at fault' in Paul Walker crash

INVESTIGATORS have found no evidence that the Porsche carrying actor Paul Walker had mechanical problems before it crashed, killing the Fast & Furious star. The investigation also ruled out debris or other road conditions as causing the car in which Walker, 40, was a passenger to slam into a lamppost and tree and burst into flames. "We're looking at speed and speed alone," a law enforcement source said.

One Lap of the Web: One lap of the 'Ring in a Lamborghini Cabrera

-- Ever wondered how a 2013 Audi S3 would stack up against a 1983 Audi Sport Quattro on a rally circuit? So have we, but unlike us, Audi actually has the means to make the two cars go head to head. And, of course, they've filmed it all .