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Honda's Civic engine is the most efficient non-hybrid inline-four in current production
The Toyota Corolla and Hyundai Elantra are both remarkably fuel-efficient, but one small sedan beats them both when it comes to delivering the best MPG performance from a non-hybrid four-cylinder ...
The Toyota Corolla and Hyundai Elantra are both remarkably fuel-efficient, but one small sedan beats them both when it comes to delivering the best MPG performance from a non-hybrid four-cylinder ...
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