Winner: Chevrolet Cruze
Winner: Chevrolet Cruze
July 2011 sales: 24,648
Change from July 2010: Infinite

"The best-selling small car in America is a Chevrolet." When was the last time you were able to say that? Consumers are now putting a historically high focus on fuel efficiency, and that plays to the strengths of the Cruze, which has been on the market for less than a year. With a 1.4-liter turbocharged inline-four, the Cruze Eco is good for up to 42 miles per gallon on the highway. Coming in 2013: an even more fuel-efficient Cruze powered by a diesel engine.

Last updated August 09 2011: 10:18 AM ET
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