This is the Bentley Continental Supersports ethanol-powered concept car. Dubbed the "Extreme", it is being launched at the Geneva Motor Show this weekPhotograph: BentleyThe Extreme runs on a green fuel called E85, which is 85% bioethanol. However the car does still prioritise luxury - it does just 11.5 miles to the gallon when motoring around the city Photograph: BentleyDespite using a green fuel the car also emits 388 grams of carbon dioxide per kilometre, around four times as much as Fiesta's green car, the Econetic.Photograph: Bentley
The car is two-seater only, and Bentley says it harks back to the glory days of the 1920s.Photograph: BentleyThe car has not yet been priced, but we expect that it will cost at least £140,000Photograph: Bentley
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