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Automotive X Prize Finalists (PHOTOS): 9 Cars That Could Change The World

Huffington Post     First Posted: 07/30/10 04:54 PM ET   Updated: 05/25/11 06:15 PM ET

They're aerodynamic, they're snappy, and, best of all, they're efficient.

The Progressive Insurance Automotive X Prize has announced the finalists in its competition to develop a new breed of energy efficient vehicles.

Just 9 cars (down from 136) remain in the competition, which aims to "inspire a new generation of super fuel efficient vehicles." The cars, which go through a grueling series of tests and technical inspections to determine their road-worthiness, must be able to handle real-world scenarios. "It is about developing real, production-capable cars that consumers will want to buy, not science projects or concept cars," the X Prize Foundation explains.

Check out the finalists in the slideshow below, then vote for your favorite on the X Prize website.

E-Tracer 7002 and E-Tracer 7009
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The two-seater vehicle, designed by X-Tracer, has a slick aerodynamic design. The car weighs about 1350 pounds, runs on an electric battery, and should cost around $100,000.

Stats:

- Best mpg to Date: 350 mpge (miles per gallon equivalent) at constant 62 mph
- Acceleration (0–60 mph): < 4 sec
- Top Speed: 155 mph regulated, but 180 mph unrestricted
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WINNER!

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Users who voted on this slide
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Images courtesy of the X Prize Foundation.

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