Chevy's Volt Has the Juice

But safety, cost, and reliability factors still need to be ironed out before GM can bring its plug-in hybrid to market

It wasn't too long ago that General Motors' (GM) top executives sniffed at the notion of building hybrids. They were too expensive to be made profitably. Consumers wouldn't pay for fuel economy until gasoline prices stood well over $3 a gallon. And hydrogen-powered cars would make hybrids a short-lived option early in the next decade.

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