The world needs a new source of energy, an unspillable source.

What happened to the water car?

I am aware of Stanley Meyer’s car that supposedly ran on water by breaking H2O into hydrogen & oxygen. After his death what happened to his prototype car? Are there any other people successful in building a fully functional prototype? I also already know the history of Brown’s gas, electrolisis, and Joe cells so please keep answers about cars that run on water. Thanks!