Supercars generally have the reputation for being gas-guzzlers as they rage across our roads with a need for speed. But the new Porsche 918 Spyder may be about to change all that - for while it manages a top speed of 201mph, it also manages an economic 94 miles to the gallon.
That makes the Porsche more economic than the car with one of the greenest reputations on the road - the Toyota Prius - which can manage 72.4mpg. The UK's biggest selling car, the Ford Fiesta, by contrast, manages just 78.5mpg.
The Porsche 918 Spyder will be able to accelerate from 0-62mph in less than three seconds - making it faster than most supercars on the market. The green Porsche works via a new hybrid system where two electric motors generate power alongside the car's 4.6-litre V8 engine.
The German-built vehicle will go into production in September next year - although it will cost a gobsmacking $1.5million. That must be the price of a car that can make Jeremy Clarkson green with envy without giving Greenpeace too many sleepless nights.
