I drove 1800 miles in a Hydrogen Car

Id want another video on this and also to cover a hydrogen combustion engine and the developments on tht as it is 100 times more efficient and has greater energy release than petroleum per mole .
Also the hydrogen comes from various reactions in which acidic radical of h+ reacts with a reducing agent and gives out h2 or els reactions where h- reacts with acids and releases h2 eg NaH + HCl