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Alfa Romeo 4C spied in Michigan

During the Detroit auto show in January, Fiat and Chrysler CEO Sergio Marchionne told us -- in his own irreverent way -- that arrival of the long-promised Alfa Romeo 4C would be delayed once again. But as these spy photos show, testing on the sporty coupe continues even as a debut date remains elusive. This isn't the first time we've caught the 4C testing in the States.

BMW Concept Coupe

BMW unveiled their latest concept in the run up to the contemporary Mille Miglia, a road race for cars that competed during the original event held between 1933 and 1957. The BMW 328 that set the fastest time in 1940, averaging over 100mph, has also provided inspiration for the Coupe Concept, which mixes the older car's silhouette with surfaces closer to the Z4 on which it is based. Powered by BMW's seminal 343PS engine, the car is wrapped with carbon-fibre reinforced plastic (CFRP), whose form is defined by designers using plaster rather than clay "for a closer emotional experience".

Audi RS Q3: Official

Audi has revealed their first ever RS SUV in the shape of the RS Q3, a 306bhp compact SUV which will debut at the 2013 Geneva Motor Show. Arriving for its first public outing at the Geneva Motor Show next month, the RS Q3 (we want to call it the Q3 RS) comes, as expected,  with Audi’s 2.5 litre five-cylinder engine packing 306bhp and 310lb/ft of torque, which is enough to throw the RS Q3 to 62mph in just 5.5 seconds and still manage official economy of 32.1mpg. Audi has lowered the suspension on the RS Q3 and given it stiffer springs and dampers as well as fitting bigger anti-roll bars.