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BMW offers M Performance Parts for 3- and 5-series

BMW opened up its M Performance Parts catalog to the new 3- and 5-series, the company said on Friday. The German automaker will offer chassis, brakes, aero upgrades and exhaust improvements for the 2012 3-series and the 2011-12 5-series. BMW revealed the line for its diesel cars in Europe in January, but those cars won't be coming here.

Chevrolet Mi-ray Concept Seoul Debut

The Chevy Mi-ray - a two-seater hybrid roadster GM are big in Korea, make no mistake. Well, South Korea, certainly. So big are Chevrolet in Korea that they rank only behind indigenous makers Kia and Hyundai, and Seoul is GM’s world centre for small cars – think of stuff like the Chevrolet Cruze and Chevrolet Aveo.

Alfa Romeo 4C Spider revealed: Geneva Motor Show

The Alfa Romeo 4C Spider (pictured) revealed in Geneva The Alfa Romeo 4C is the epitome of a modern ‘supercar’, with ultra light weight (for a production car) allowing the 4C to produce very good performance from its modest 17500cc engine. So producing an Spider convertible immediately raises the weight issue in a more dramatic way when the car’s abilities are so dependent on it low weight, but it seems the Alfa Romeo 4C Spider – previewed as a production car with a concept at Geneva today – has managed to keep the wight penalties of the convertible 4C down to a minimum. Thanks to a canvas roof and carbon fibre rollover bars, the weight penalty for the Spider is only about 60kg (around a 7 per cent gain) which shouldn’t hurt performance too much.