Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

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.

Renault revives Gordini hot hatch brand

Renault is to revive the Gordini name, using it on range-topping versions of its Renaultsport Twingo, Clio and Megane hot hatches. The first new-generation Gordini will be based on the Renaultsport Twingo 133, and be unveiled on 25 November 2009 at Renault's premier showroom on the Champs Elysees. The new car will be called the Twingo Gordini RS, and then a Clio Gordini RS will follow in spring 2010.

2012 BMW M5 revealed in production trim

The wraps have been torn off the fire-breathing 2012 BMW M5. And, as expected, the Bavarian luxury maker is going in a different direction under the hood. BMW is eschewing a naturally aspirated powerplant in the new M5, whose high-revving roots date to the 1980s, in favor of a 4.4-liter twin-turbo V8 pushing out about 552 hp.