[filburt1]

Does it burn (or whatever) cleaner than gasoline, or at the least, clean enough to meet EPA regulations? Is it a powerful enough substitute for gasoline?

That's the problem with current gasoline alternatives (not counting hybrids) such as pure electrics, natural gas, or hydrogen: there is no infrastructure set up. It's a deadlock situation, because there's no incentive to set up the infrastructure because nobody owns the cars because there's no infrastructure.