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1Popular Mechanics' Breakthrough Award green auto winners: Tesla, BlueTec, cheap hydrogen

Three green car-related technologies have won Popular Mechanics' Breakthrough Awards this year. They are the Tesla Roadster, Mercedes' BlueTec engine and an electrolyzer from GE that can extract hydrogen from water on the cheap. The Tesla Roadster won because it blows away (in under four seconds) the most common complaint about EVs: range. BlueTec won because of its incredible meshing of diesel's power and low-fuel consumption with low emissions.

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