Prototype

San Francisco Gate - environment will tell you that failure in a test run is no indication of final performance, or even rate at which a prototype That is, the delivery vehicles just got the buses into the exoatmosphere, and then the targeting systems on the actual

Hydrogen fuel cell company starts small
Lexington Herald-Leader - Though prototype hydrogen cars exist, they're far from practical or affordable. Horizon's H-Racer and fueling station solve make fuel cells more efficient, so that they can be used to power cell phones and laptop computers, and eventually vehicles

China company starts small with hydrogen-powered car
Newburyport Daily News - and the question of how to cleanly generate the gas and distribute it to yet-to-be built fueling stations. Though prototype make fuel cells more efficient, so that they can be used to power cell phones and laptop computers, and eventually vehicles