Most & least fuel efficient vehicles Boston.com
The most and least fuel-efficient 2007 model cars, trucks and sports utility vehicles, according to information submitted by manufacturers to the Environmental Protection Agency and the Department of Energy.
Top Ten Most Fuel Efficient    Miles per gallon (city-highway)
1. Toyota Prius (hybrid)    60-51
2. Honda Civic Hybrid    49-51
3. Toyota Camry Hybrid    40-38
4. Ford Escape Hybrid (front-wheel drive)    36-31
5. Toyota Yaris (manual)    34-40
5. Toyota Yaris (automatic)    34-39
6. Toyota Yaris (automatic)    34-39
7. Honda Fit (manual)    33-38
8. Toyota Corolla (manual)    32-41
9. Hyundai Accent and Kia Rio (manual)    32-35
10. Ford Escape Hybrid (four-wheel drive) and Mercury Mariner Hybrid (four-wheel drive)    32-29


Top Five Least Fuel Efficient
      
1. Lamborghini L-147-148 Murcielago (automatic)    9-14
2. Bentley Arnage LWB    10-15
3. Lamborghini L-147-148 Murcielago (manual)    10-16
4. Ferrari 612 Scaglietti (automatic)    10-17
5. Ferrari 599 GTB    11-15
6. (tie) Bentley Azure, Bentley Arnage    11-16
7. (tie) Lamborghini Gallardo Spyder, Lamborghini L-140-715 Gallardo (manual-LR)    11-17
8. (tie) Aston Martin DB9 Coupe, DB9 Volante (manual), Bentley Continental Flying Spur, and Bentley Continental GTC    11-18
9. Jeep Grand Cherokee (four-wheel drive)    12-15
10. (tie) Mercedes-Benz ML63 AMG, Mercedes-Benz R63 AMG    12-16