Electric Car? How about a Compressed Air Car?

There you go, think outside the box! I was thinking about some substance
that could be used that a small amount of matter when reacted would produce
a large amount of "controllable" gas. Forget about plugging it in each
night, just drop in a cartridge or something. (Hey I'm just an idea man -
you work out the details)

Carbide (like was formerly used in miner's headlamps)?

David Johnson