Advocates of alternative-fuel vehicles would seem a unified bunch of tree huggers, bound by their determination to wean the world's automobiles off fossil fuels. But there's a red-hot fight brewing in the green-car world.
Proponents of the two most hyped technologies -- hydrogen fuel cells and plug-in electric hybrids -- are squared off in an increasingly bitter fight. They are vying for publicity, manufacturer acceptance, favorable regulation and, especially, funding for research and investment in infrastructure and marketing.
The battle has been simmering for several years, but with the technologies coming tantalizingly close to commercial reality, the stakes are higher than ever. Whoever gets the upper hand now could determine what kind of cars we all drive in the future.
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