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You probably wouldn’t expect an oil company to help develop an ultra fuel-efficient car, but that’s exactly what Shell has done.

The energy giant teamed up with famed automotive engineer Gordon Murray – the man behind the 240 mph McLaren F1, once the world’s fastest production car -- to create a lightweight, eight-foot-long, three-seat city car that’s good for over 89 mpg.

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(Shell)

Built on a tubular steel frame with carbon fiber and composite structural elements and bodywork, the car weighs just 1,212 pounds and needs just a  43 hp 660cc three-cylinder engine mounted in the rear to hit 98 mph. Shell formulated an experimental oil to maximize the motor’s efficiency.

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(Shell)

Like the F1, the driver sits in the middle with two passengers to the sides and behind, giving all three a reasonable amount of space, even though the car is so narrow that five of them could fit side by side in a soccer goal. With a canopy-style door, you could still get in and out of it when it’s parked like that, and look like a sea creature emerging from its shell when you do.

Shell isn’t planning on building the car itself, it’s just a concept. However, Murray has been working with several automakers on similar designs and one day hopes to put something like it into production.