Biggest Gas Guzzlers: 2010

Photo: AP Many of the vehicles on this list happen to be some of the most exotic and expensive luxury cars on the market. The American Council for an Energy-Efficient Economy looked at the fuel economy and emissions of 2010 model cars to rank the worst 12 cars for the environment, and the vehicles on the list are either high performance luxury cars--like the Bugatti Veyron—or heavy-duty trucks—like the GMC Yukon. Take a look at the 12 worst cars for the environment.Source: ACEEEPosted Jan. 20, 2010» Slideshow: Greenest Cars 2010

Photo: Mercedes-Benz Starting price: $104,000 MPG: 15 highway/11 city Green score: 21 » Slideshow: Greenest Cars 2010

Photo: GMC Starting price: $43,110 MPG: 19 highway/13 city Green score: 21 » Slideshow: Greenest Cars 2010

Photo: Mercedes-Benz Starting price: $91,050 MPG: 15 highway/11 city Green score: 20 » Slideshow: Greenest Cars 2010

Photo: Chevrolet Starting price: $42,245 MPG: 18 highway/13 city Green score: 20 » Slideshow: Greenest Cars 2010

Photo: Bentley Starting price: $201,500 MPG: 17 highway/10 city Green score: 20 » Slideshow: Greenest Cars 2010

Photo: Dodge Starting price: $36,865 MPG: 17 highway/12 city Green score: 20 » Slideshow: Greenest Cars 2010

Photo: Ferrari Starting price: $299,720 MPG: 16 highway/9 city Green score: 20 » Slideshow: Greenest Cars 2010

Photo: Ford Starting price: $25,875 MPG: 17 highway/12 city Green score: 20 » Slideshow: Greenest Cars 2010

Photo: Maybach Starting price: $358,000 MPG: 16 highway/10 city Green score: 19 » Slideshow: Greenest Cars 2010

Photo: Bentley Starting price: $340,990 MPG: 15 highway/9 city Green score: 18 » Slideshow: Greenest Cars 2010

Photo: Bugatti Starting price: $1.7 million MPG: 14 highway/8 city Green score: 18 » Slideshow: Greenest Cars 2010

Photo: Lamborghini Starting price: $354,000 MPG: 13 highway/8 city Green score: 18 » Slideshow: Greenest Cars 2010

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