A Florida man has invented a car that runs partially on water. Inventor Denny Klein can see the day when you can run your car entirely off of water, but for now his "Aquygen" could double your gas mileage.
Klein's Aquygen is water broken down and turned into HHO gas, something scientists once thought impossible.
The current protype is a gas Aquygen hybrid. Klein says his invention can be retrofitted for any piston driven engine. The hybrid version of the car could hit the market in as little as 2 years: Aquygen units for industrial use are already for sale.