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12 worst cars for the environment in 2011

Bugatti Veyron in showroom

Photo: Bugatti

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Bugatti Veyron

The fastest production car on the planet is also the worst car for the environment. The Bugatti Veyron, which can go from 0 to 60 mph in under three seconds, has a fuel efficiency rating of only 8 mpg in the city and 15 mpg on the highway. This earned the supercar a Green Score of 19, significantly lower than the highest scoring 2011 model, the Honda Civic GX with a Green Score of 54. The good news is the multimillion-dollar price tag limits the number of Bugattis on the roads.