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When one goes shopping for a sportscar, usually the last things on their mind are fuel consumption and emmissions. You expect them to be loud, fast gas-guzzlers with no regard for the earth. The Porsche 918 Spyder, however, is not only a sleek modern luxury auto, but it is fuel-conscious and very easy on the environment.

Combining elements of a 911, a Prius and a Ferrari F430, this car is a hybrid you can plug in. Running off dual electric motors, the Porsche 918 Spyder has a fuel economy of 78 MPG, which is pretty good for a roadster. Don't think just because it's a hybrid that it lacks power, however, this bad boy pumps out 718 HP. Take that, Honda Insight!