EU fuel-economy ratings move further from reality; Mercedes tops offender list

2018 Mercedes-Benz E-Class Coupe

It’s well known by now that the European Union testing protocol for fuel economy is much less rigorous than the U.S. Environmental Protection Agency (EPA) standards. Both protocols are based around laboratory testing rather than real-world evaluation, but EU figures have gained a reputation for being much more optimistic than what drivers can… …read more