Autoblog: Mercedes named top cheater on Europe's fuel economy test

It's not so much "cheating" as "optimizing the vehicle for the test". If you think it doesn't happen here, and if you think every manufacturer doesn't do this to some extent, think again! Gear ratios and shift programming is optimized to pass the specified test. Some do this more aggressively than others.

Buy a Ford Ecoboost, and just try hitting the US EPA estimates with it! You can do it, but it requires being the slowest vehicle on the road!

(FWIW I have a vehicle which is a Mercedes product and have no trouble beating the US EPA estimates with it, but the Euro rating is impossible ...)
 
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