Why don’t small cars get better highway fuel economy?

Anyone who has paid close attention to the EPA ratings–or the real-world fuel economy figures on TrueDelta, has probably noticed that compact cars don’t tend to get much fuel economy on the highway than midsize or even large cars. Take Toyota’s offerings, for example:  Yaris – subcompact:  29/35 Corolla – compact: 27/35 Camry – midsize: 21/31 Camry V6 – midsize:… More →