Mercedes' really low-drag cars are only specific variants of cars with typical Cd (for example, the CLA in American trim has Cd .28, while the BlueEfficiency version available in Europe is much lower at Cd .22). Meanwhile, the Corolla (Cd .28), Prius (.25), Sentra (.29), Mazda6 (.26), FR-S (.27), Camry (.28), Mazda3 (.26), and Avalon (.28) have drag coefficients well in line with what Mercedes and other manufacturers are producing, if not lower than what some are doing (*cough* Chrysler).
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