• 2009 BMW Vision EfficientDynamics Concept

    The flurry of activity in hybrid and electric supercars has led to several concepts being approved for production, but BMW still hasn't publicly committed to a date for its high-tech green performance car. Mercedes-Benz has its SLS AMG E-Cell; Audi has the E-Tron; even Porsche gave the green light last week to its astounding 918 Spyder hybrid supercar. The striking BMW Vision EfficientDynamics concept car, shown at last fall's Frankfurt Motor Show, was reportedly approved for production last February, and as of that time, the year being bandied about was 2013. But unlike the others, that's...

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