Least and Most Polluting Cars, 2009

Updated February 21, 2017 | Factmonster Staff Updated by an Factmonster Editor on February 21, 2017

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. Toyota Prius	48	45	53
2. Honda Civic Hybrid	40	45	51
3. Toyota Yaris	29	35	46
4. Honda Fit	28	35	45
5. Ford Escape Hybrid	34	31	42
6. Hyundai Sonata	22	32	39
7. Subaru Outback Wagon	20	26	37
8. Nissan Rogue	22	27	37
9. Toyota Tacoma	19	25	34
10. Ford Ranger	19	24	33

Meanest vehicles	MPG: city	MPG: hwy.	Green¹ score
1. Hummer H2 FFV	11	18	16
2. Lamborghini Murcielago	8	13	17
3. GMC Yukon 2500	13	19	18
4. Mercedes-Benz G55	10	26	19
5. Maybach 57S	10	26	19
6. Lincoln Navigator FFV	14	19	19
7. GMC Sierra K2500	13	19	19
8. Mercedes-Benz ML63 AMG	10	14	20
9. Jeep Grand Cherokee	11	14	20
10. Dodge Ram 2500 Mega Cab	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, 2006

Least and Most Polluting Cars, 2007

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See also:

Least and Most Polluting Cars, 2010