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XL1 dive and drive: Volkswagen aggressively optimizes for efficiency in its sleek diesel plug-in hybrid

Green Car Congress

The XL1 is aggressively optimized for efficiency in all areas of its design and technology—from materials (carbon fiber reinforced polymer monocoque); to powertrain (0.8L Even a sportscar like the Porsche Boxster is 5.1 The battery comprises 60 25Ah cells, with a carbon-fiber case. inches long, 65.6

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