Blimey, the Vauxhall Insignia's going a bit Batmobile on us. Vauxhall's Geneva show concept car is the Flextreme GT/E, and the designers hint that a lot of the styling ideas here will turn up on the next Insignia in five years' time.
The designers pretty much took up residence in a wind tunnel, and got the cd down to 0.22. They managed to avoid the bread van tail of your usual low-drag saloon (step forward Mr Prius) by shaping a swoopy pair of blades over the rear wheel arches... Read more at TopGear.com