Hydrogen car
Hey, I was yelling at the screen, "where's the hydrogen going to come from, then?" This is, of course, the big question. I also think the car companies are already putting a lot of cash into this kind of thing, and I'm not sure the Federal government needs to put its oar in.
Honda has developed a hydrogen fuel cell car that is being released on an experimental basis. Their most recent version has a top speed of 140 km/hr (87 mph) and a range of 300 km (186 mi.) Not great, especially in the range department, but it doesn't suck either. The car uses standard hydrogen gas stored in 5,000 psi tanks.