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GMC Granite at the Detroit motor show 2010

This is the GMC Granite, a new concept car unveiled by GM at the 2010 Detroit Auto Show. Designed to move away from GMC's current range - which is dominated by pick-up trucks and full-size 4x4s - the Granite is much smaller than any GMC currently on sale. Yes, the Granite is just 4097mm long, making it shorter than a Ford Focus or BMW 1-series.

Audi A1 Quattro models ‘on the way’

Audi has confirmed it is testing four-wheel drive Quattro versions of the A1 – indicating an imminent expansion of Audi’s supermini range. Although showcased as this one-off at a Quattro publicity event in Montreal, Canada, to celebrate 30 years of the all-corner drive system, Ingolstadt acknowledged at last autumn’s 2010 Paris motor show that Quattro versions of the A1 were in the pipeline. The production A1 Quattro will use the Haldex differential to split drive to both axles; it’s a similar technology to that found in A3 and TT Quattros, as opposed to the mechanical Torsen diff found in larger Quattro models.

Toyota FT-1 sports car: How it happened

Editor's note: The inner sanctum of an automaker's design studio is as classified as a top-secret government spy shop. Even many top executives aren't allowed inside, much less civilians or the media. But after months of negotiations, Toyota Motor Corp.