Could hydro-fuel cars be the future?

Can this motor car really run on more than 50% water, and the rest mixed fuel? Or was it a staged experiment? These U.S guys in the video seemed to have proved that you can indeed run a motor vehicle on HO2 and mixed fuel. Quite a remarkable discovery, considering for decades, cars have been running on atleast 90% petrol. With all the talk of green and electric technology, would running your motor on more than 50% water really be efficient both commercially, and viably? Just because it is effective, doesn't mean those commercial giants would believe it is profitable?....