Hey, maybe a wind-powered car?!?
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as the car moves, the wind powers a generator. Just gotta blow real hard to get it started.
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Kidding, of course.
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Solar, unless the multiple-layered cells are used (EXTREMELY expensive) is not a viable way to power a car, at least not in real-time. OF course if ya got a solar array to charge an electric car you got free energy and a free ride, which would be pretty sweet although that money saved would go into paying for that setup no doubt.

I think Saturn sales have and will continue to help GM out of its own grave. Saturn now offers a very attrictive line. The Sky is an awesome car. the Aura has all the class of the next Malibu, but has already established a postive award winning stand in the game. The all new 08 Sky is a great cross over and strays away from those nasty three letters: SUV. I feel that Saturn will prove itself once again with the upcoming Astra in the competive sport compact, micro, and b-spec market. GM appears to be lately using Saturn as a launch pad for new ideas and designs, then later applying towards the higher levels of Chevy and GM.

Im sorry for GM but a new malibu isnt gonna be the way to bring profits back. maybe tying in with the MOB and embezzeling money through the company through dirty work. But thats confidential