• BMW Vision EfficientDynamics Concept

    BMW's legendary M series performance cars use big, brawny, turbocharged gasoline engines. The 2009 BMW M5, for example, has a 500-horsepower, 5.0-liter V-10. How many cylinders ??? Where ??? But the concept car BMW will unveil in two weeks at the Frankfurt Motor Show promises "the performance of an M vehicle" from a very different source: a tiny, rear-mounted three-cylinder diesel, mated to a plug-in hybrid electric system. Clearly, Hell has just frozen over. From this highly unlikely powertrain, BMW claims a 0-to-62-mph time of 4.8 seconds, and a top speed of 155 mph. And would you believe...

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