The Top Ten  August 27 - September 3    

Most Polluting Cars, 2007

Rank Car Model MPG, City MPG, Highway Green score1
1. Volkswagen Touareg 17 22 14
2. Mercedes-Benz GL320 CDI 20 25 16
3. Lamborghini Murcielago 9 14 17
Jeep Grand Cherokee 20 24 17
4. Bentley Arnage RL 10 15 18
Mercedes-Benz R320 CDI 21 28 18
Mercedes-Benz ML320 CDI 21 27 18
Maybach 57 S / 62 S 11 17 18
Bentley Azure 11 16 18
5. Ford F-250 13 17 19
Dodge Ram 2500 Mega Cab 13 18 19
NOTE: MPG = miles per gallon. 1. The green score runs on a scale from 0 to 100. The top vehicle this year scored a 57, and the worst gas-guzzler scored 14. The score is based on automakers' test results for fuel economy and emissions as reported to the EPA, as well as an estimate of pollution from vehicle manufacturing, from the production and distribution of fuel, and from vehicle tailpipes. It also factors in air pollution.

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