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Smart ForTwo
Smart ForTwo
Overall mpg: 36 (premium fuel)
Est. annual fuel cost: $1,397
Lowest base price: $11,590
There are trade-offs - no back seats, choppy ride, twitchy highway manners - but the ForTwo is cheap, and it goes a long way on a gallon of gas.

There's no fancy technology involved, either. It's just a small engine running a small, two-seat car. Its 1.0-liter three-cylinder runs on high-priced premium fuel, but it makes a little of it go a long way.

NEXT: Ford Escape Hybrid

Last updated March 12 2008: 4:27 AM ET
Source: Fuel economy and cost estimates, EPA