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Chevrolet Volt visits the wind tunnel

By Ben Whitworth First Official Pictures 13 December 2007 10:00 Back in January the Volt was easily the surprise of this year’s Detroit motor show. Chevrolet reckoned its radical electric four-seater was such a breakthrough that it would transform the way we drive when it arrived in showrooms by the end of the decade. And it’s just announced that the production model will be significantly more efficient at scything through the air: the Volt has been sent to GM’s wind tunnel where Chevrolet’s aerodynamicists has smoothed off some of its blunt surfaces to create a shape that is 30 percent more effective at cutting cleanly through the air at speed than the original concept.

Listen again to Autodesk's Creative Sketching with SketchBook Pro webinar

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Mercedes-Benz CLA

This is the Mercedes-Benz CLA, the four-door sedan version of the latest C-segment A-Class although the Merc marketing department would rather we call it a 'four-door coupé'. Previewed by the Concept Style Coupé at the Beijing auto show earlier in 2012, the CLA will join a growing band of C-segment premium sedans including the new Audi A3. At around 4,600mm long it's over 300mm longer than the hatchback.