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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.

Rolls-Royce Wraith (2013) second teaser of 600bhp coupe

This is part three of Rolls-Royce’s pre-Geneva motor show tease of its new Wraith coupe. We’ve already seen a ghostly interpretation of the Spirit of Ecstasy figurine, and a side profile shot that revealed a resemblance to a ’68 Mustang Fastback, and now Rolls has shown the rear of the Wraith, and made a few proud proclamations about just how powerful its new super-coupe will be. I can’t see much of the new Rolls-Royce Wraith… Unfortunately it’s another shadowy teaser from Rolls-Royce, in the same vein as the side profile silhouette.

June 29: No problems here

I am now in my office, which is 22 miles from my home. It used up about 1/3 of its charge to get here, with the air conditioning running. It has been plugged in to a 120-volt outlet in the building's parking structure for seven hours.