With present technology, only the electric car is ready to run on nearly any kind of fuel, including fission and wind power.
As I said before, the emerging consensus is that the best near-term solution would be the "plug-in hybrid," with a larger battery pack than today's hybrid. EPRI recommended this, and so did James Woolsey, of all people. See:
http://www.businessweek.com/magazine/content/05_15/b3928103.htm
Funny quote:
"EPRI Program Manager Robert Graham is convinced that Toyota already has prototype plug-ins running. Toyota says no. 'We keep looking at the concept, and at some point it might be feasible, but it isn't there yet,' says David Hermance, Toyota's executive engineer for environmental engineering."
- Jed

