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12 worst cars for the environment in 2011

By: Melissa Hincha-Ownby on April 13, 2011, 10:25 a.m.
Bentley Continental GTC on road

Photo: Bentley

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Bentley Continental GTC

If you can afford a Bentley Continental GTC then you won’t be concerned about filling up the gas tank on this luxury sports car. The 6.0L 12-cylinder engine churns out 552 horsepower and 479 pound-feet of torque, and delivers an estimated 11 mpg in the city and 18 on the highway. During the 2010 Gumball 3000, there were several of these anything but eco-friendly beasts on the road, including one driven by skateboarding superstar Tony Hawk.