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Audi's electric R4 at the Detroit motor show 2010

This is Audi’s latest electric E-tron sports car, unveiled at today’s Detroit motor show. Or to give the concept its official name, this is the Audi E-tron Detroit Showcar. Catchy.

Mercedes C63 AMG 'Edition 507' (2013) first official pictures

Mercedes has squeezed another 50bhp out of the C63 AMG, creating the 500bhp 'Edition 507' range. The power bump comes courtesy of forged pistons new connecting rods and a lightweight crankshaft inherited from the £160,000 SLS AMG supercar. Why is this special C63 AMG called the 'Edition 507'?

San Marino Motor Classic celebrates its third year

There may be more car collections hidden in Southern California garages, hangars and warehouses than anywhere else in the world, and Aaron Weiss knows almost all of the collectors. Weiss, along with co-founders Ben Reiling, Paul Colony and a large contingent of car-crazy compatriots and sponsors, put together the third annual San Marino Motor Classic on June 9 with 250 cars ranging from grand tourers to a Wells Fargo stage coach hauling guests around the show. “It's the best of the public and private collections in the Los Angeles area,” said emcee Ed Justice Jr., president of industry products company Justice Brothers.