2021 Most and Least Efficient Cars
Most Efficient Cars by EPA Size Class (excluding electric vehicles)
EPA Class Vehicle Combined MPG
Compacts Toyota Corolla Hybrid 1.8 L, 4 cyl, Automatic (variable gear ratios) Hybrid 52
Midsize
Midsize Toyota Prius Eco 1.8 L, 4 cyl, Automatic (variable gear ratios) Hybrid 56
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