Recently, an article on the "official line" reports set off hot water hydrogen engine, users questioned the project is inconsistent with the conservation of energy. Add water, it can travel 500 km, 1000 km?
This kind of thing, in theory, is feasible from a physical point of view, nothing more than water electrolysis hydrogen production, purification equipment to do a consolidation in the car only, but reality can not be universal. Because the entire system volume is too large, too heavy vehicle load, as a direct hydrogen storage life of solid hydrogen or bottles advantage, but not suitable for use on a passenger car, the system too large.
Purely personal thoughts, invasion deleted.