12v MacGyvers H2O to HHO gas: Drive Cook Weld Heat

What if every driver got 1/3 of their miles from water instead of gasoline? With 12 volts, Pat MacGyvers water into gas for welding, cooking and replacing gasoline. 4 years later, Pat splits water into fuel for his 34 foot Tour Bus with an array of 12v-200watt-15amp Solar Panels.