Least and Most Polluting Cars, 2007
Updated February 21, 2017 | Factmonster Staff 
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 | 28 | 39 | 57 |
| 2. Toyota Prius | 60 | 51 | 55 |
| 3. Honda Civic Hybrid | 49 | 51 | 53 |
| 4. Nissan Altima Hybrid | 42 | 36 | 48 |
| 5. Toyota Yaris | 34 | 40 | 47 |
| 6. Toyota Corolla | 32 | 41 | 46 |
| 7. Toyota Camry Hybrid | 40 | 38 | 46 |
| 8. Honda Fit | 33 | 38 | 45 |
| 9. Kia Rio/Rio 5 | 32 | 35 | 45 |
| 10. Hyundai Accent | 32 | 35 | 45 |
| Meanest vehicles | MPG: city | MPG: hwy. | Green1 score |
|---|---|---|---|
| 1. Volkswagen Touareg | 17 | 22 | 14 |
| 2. Mercedes-Benz GL320 CDI | 20 | 25 | 16 |
| 3. Lamborghini Murcielago | 9 | 14 | 17 |
| 4. Jeep Grand Cherokee | 20 | 24 | 17 |
| 5. Bentley Arnage RL | 10 | 15 | 18 |
| 6. Mercedes-Benz R320 CDI | 21 | 28 | 18 |
| 7. Mercedes-Benz ML320 CDI | 21 | 27 | 18 |
| 8. Maybach 57 S / 62 S | 11 | 17 | 18 |
| 9. Bentley Azure | 11 | 16 | 18 |
| 10. Ford F-250 | 13 | 17 | 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. Source: Web: American Council for an Energy-Efficient Economy (ACEEE).
