The Volkswagen XL1 is the world's most fuel-efficient car. It's a plug-in hybrid with a 0.8 liter, 2 cylinder aluminum diesel engine and gets 160 mpg.
The World's Most Fuel-Efficient Car
The Volkswagen XL1 is the world's most fuel-efficient car. It's a plug-in hybrid with a 0.8 liter, 2 cylinder aluminum diesel engine and gets 160 mpg.
Jan 22, 2014
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