Honda Fit

Cost: $14,550
Available: Now
Green Highlight: Aerodynamic body shape improves fuel economy
ACEEE Score: 44

Honda's (HMC) thrifty little hatchback has been a hot seller with younger buyers looking for fuel economy. Its chief green virtue is not tech-based, but in its small size and aerodynamic wedge shape. Its 1.5-liter, four-cylinder engine earns between 28 and 34 miles per gallon.