ZEV (Zero Emission Vehicle)
Ah, the holy grail. Cars that are clean as clean can be--zero tailpipe emissions, zero evaporative emissions, zip. But can you buy a ZEV? Except for bicycles, ZEVs are as scarce as an honest politician and pricier than a Monet. The potentially big players include hydrogen-powered cars (the Honda FCX, the Toyota FCHV, and the Chevy Sequel), hydrogen/electric hybrids (notably, the Ford Edge), and pure electric cars, such as the Tesla Roadster.