The way I always understood it, hydrogen fuels invariably were electrolysis at one end and some reaction (not necessarily burning as such, though that is an option) at the other - which made a H2 car really just an electric car, with a big hydrogen battery. Is this somehow different? The news report doesn't say (obviously - both because news reports don't care that much, and because patented techniques aren't appropriate for publication).

His plan for replacing oxy-acet with HHO looks pretty good though. Again, I'm curious as to the technology and chemistry of it, but it's clearly demonstrable. This is no "free energy" notion here - all the energy he gets out of it had to go in as electricity - but it could do wonders for safety and convenience, as most people have mains electricity and water on-tap, ready to go.

(Is "HHO" actually H+ and HO-? Or 2H2 and O2? Or - what?)