Least and Most Polluting Cars, 2010

The ACEEE's Green Book®, a buyer's guide to environmentally friendly passenger vehicles, rates cars according to their emissions and fuel consumption, and publishes an annual list of the "greenest" and "meanest" (i.e., most polluting).

Greenest vehicles MPG:
city
MPG:
hwy.
Green1
score
 1. Honda Civic GX 24 36 57
 2. Toyota Prius 51 48 52
 3. Honda Civic Hybrid 40 45 51
 4. Smart For Two Convertible/Coupe 33 41 50
 5. Honda Insight 40 43 50
 6. Ford Fusion Hybrid/Mercury Milan Hybrid 41 36 47
 7. Toyota Yaris 29 36 46
 8. Nissan Altima Hybrid 35 33 46
 9. Mini Cooper 28 37 45
10. Chevrolet Cobalt XFE/Pontiac G5 XFE 25 37 45
Meanest vehicles MPG:
city
MPG:
hwy.
Green1
score
 1. Lamborghini Murcielago 18 13 18
 2. Bugatti Veyron 8 14 18
 3. Bentley Azure/Brooklands 9 15 18
 4. Maybach 57S 10 16 19
 5. Dodge Ram 2500 Mega Cab 12 17 20
 6. Ford F-250 12 17 20
 7. Bentley Continental 10 17 20
 8. Ferrari 612 Scaglietti 9 16 20
 9. Mercedes-Benz ML 63 AMG 11 15 20
10. Chevrolet Suburban K2500 13 18 20
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. Source: Web: American Council for an Energy-Efficient Economy (ACEEE).

Most Expensive Cars, 2007 Transportation Least and Most Polluting Cars, 2007
Least and Most Polluting Cars, 2010

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