This is an old clip shown about 20 years ago of a local inventor holding many patents on his dune buggy style car. His name was Stanley Meyer. Look his name up, and you'll get to know more about his invention, and the mysterious way he "died".
For all the people out there saying this is some kind of scam, you should take the time to read up on the numerous personal achievements of people who have successfully created their own water-powered cars.
ALSO, take the time to look into the companies that have successfully created water powered cars. A Japanese company in another one of my videos has done just this!