I was thinking after looking at some Steam Powered Engines. If we made some Car engines from steam power Then we could use Water or compressed air granted the car would be loud but we would no longer need gas. Granted we did have Steam Powered Engines back in the day but with the technology we have today we could have a car engine use Steam Or Compressed air but keep some kind of lubricant for the gears and the Pistons. i mean granted it is a long shot but if it is possible why don't we just do that and allow people to have cheap gas that you can buy in a bottle and another issue is turning the water into steam witch could be a normal car battery or when it is sunny a Solar panel on the car will be used to heat a copper wire wrapped around a iron pipe that transports the water allowing the water to steam then the water that wasn't converted will stay in the pipe until it can be turned to steam and push the pistons.

just a sudden though i wanted to know peoples opinion on this. And Just be truthful.
*brofist*