The subcompact Honda FCX runs on compressed hydrogen and emits only water
HT ImageTop speed: 93 mph (150 kph)
Cruising range: 190 mi. (306 km)
Capacitor
Stores energy during deceleration and braking; provides motor with extra boost during acceleration
Hydrogen tanks
Two high-pressure tanks store hydrogen used to produce electricity
Fuel cell stack
Chemical reaction between hydrogen and oxygen creates electricity