That idea is awesome!
I wonder what the water to fuel ratio might be. In reality it's an awesome idea. I'd imagine if it's a bit efficient and cost effective the idea will be purchased by the
Oil companies for billions and then set on the shelf to collect dust.
Or, Imagine filling up at the water/gas station and a little sticker in the tank lid that says, "distilled only." Then again wouldn't a gas, water, electric, solar hybrid be cool.