Vauxhall will unveil a dramatic concept car at this year’s Geneva Show. The Flextreme GT/E uses what Vauxhall calls extended-range electric vehicle (E-REV) technology – the wheels at all times are driven by electricity, but a small petrol engine/generator provides enough electricity to extend the driving range to more than 300 miles. The Flextreme GT/E also employs active shape shifting. Above 30mph, a vertical panel extends along the body from the air extraction slot behind each rear wheel-arch, guiding high-speed airflow around the rear of the car, reducing the drag co-efficient to just 0.22.
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