be...unless certain concepts of physics laws have changed, it would have to be demonstrated to me that less energy is expended to break the molecular bonds of H2O and produce free electrons capable of driving an electric motor, than the amount of energy required to produce such action. In other words, it is probably a less than zero sum game when all energy is considered.
It is of course, true, that the free electrons could power the car...but, from what source does the energy come to break the bonds to create the free electrons..and how is that energy which does the bond-breaking work, produced?