http://waterpoweredcar.com/stanmeyer.html
http://www.automorrow.com/articles/meyers2.html
http://www.waterfuelcell.org/ -- website explains the technology
"running on water" is nonsensical. The water does not contain energy that can be extracted by itself. The energy comes from elsewhere.
Its an "On board Hydrogen Electrolysis" fuel cell. if you know anything about energy conversion technologies, you'd know that it is inherently *less* efficient to do that than to do other forms of energy generation. The energy source is from elsewhere.
"When water is hit with its own molecular resonant frequency, using a system developed by Stan Meyers (USA) and again recently by Xogen Power, Inc., it collapses into Hydrogen and Oxygen gas with very little electrical input. Also, using different electrolytes (additives that make the water conduct electricity better) changes the efficiency of the process dramatically. It is also known that certain geometric structures and surface textures work better than others do. The implication is that unlimited amounts of Hydrogen fuel can be made to drive engines (like in your car) for the cost of water."
What's even more amazing is that people believe this!!!