Least and Most Polluting Cars, 2011

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:
city1
MPG:
hwy.1
Green2
score
 1. Honda Civic GX 24 36 54
 2. Nissan Leaf 3.15 2.72 54
 3. Smart For Two Cabriolet / Smart For Two Coupe 33 41 53
 4. Toyota Prius 51 48 52
 5. Honda Civic Hybrid 40 43 51
 6. Honda Insight 40 43 50
 7. Ford Fiesta SFE 29 40 50
 8. Chevrolet Cruze Eco 28 42 49
 9. Hyundai Elantra 29 40 49
10. Mini Cooper 29 37 49
Meanest vehicles MPG:
city
MPG:
hwy.
Green2
score
 1. Bugatti Veyron 8 15 19
 2. Chevrolet Suburban K2500 / GMC Yukon XL K2500 10 15 20
 3. Dodge Ram 2500 Mega Cab 13 18 20
 4. Chevrolet / GMC G2500 Express/ G2500 Savana 10 16 20
 5. Ford F-250 12 16 20
 6. Ford F-150 Raptor 11 14 20
 7. Mercedes-Benz ML 63 AMG 11 15 21
 8. Mercedes-Benz G 550 11 15 21
 9. GMC Sierra K2500 12 17 21
10. Bentley Mulsanne 11 18 22
NOTE: MPG = miles per gallon. 1. Fuel economy for electric vehicles is provided in miles per kilowatt-hour. 2. The green score runs on a scale from 0 to 100. The top vehicle this year scored a 54, and the worst gas-guzzler scored 19. 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).

Information Please® Database, © 2010 Pearson Education, Inc. All rights reserved.

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