Would be nice to be able to buy water for gas

It certainly would be nice if you could just buy water for gas. I got a diesel powered vehicle a while back thinking it would be more fuel efficient, the diesel goes up way beyond even premium! While I may be getting more miles per gallon than I would if I had a gasoline vehicle, I am not sure the difference outweighs paying 60+ cents more per gallon! A water powered car is certainly a nice thing to think about then, as water is clean and I cannot imagine that releasing steam into the air would mess with the environment any.