I drove 1800 miles in a Hydrogen Car

The problem with these cars is that producing Hydrogen/fuel is very inefficient and redundant, making it so that even if we don't pollute, we waste energy, this is because hydrogen is not found as in its molecular form, it is always part of another molecule and it takes energy to make pure hydrogen. an alternative I think could be hydrogen peroxide which is found in nature and its exothermic decomposition reaction generates oxygen and water.