It has no engine, no steering column and no brake pedal. It requires no gasoline, emits no pollution (just a little water vapor) and yet handles like a high-performance Porsche. It might sound like an environmentalist's fantasy, but there it was on display at the Paris Auto Show last September: the Hy-wire, a politically correct, fully functional prototype that General Motors claims could be road ready by 2010. Other car manufacturers--including Toyota, Honda and Ford--are working on post-fossil-fuel automobiles, but only GM has rethought the car from the ground up, adopting an impressive array of advanced technologies invented both in Detroit...
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