Plus, unlike gas, the hydrogen is never directly burnt "in the engine", it's always converted to electricity first. A hydrogen car is always going to use EV motors (and batteries, because while denser, H2 doesn't yet have anything near the ability to supply power at high demand that current battery tech has) and have all the complexity of an EV, often without the convenience of grid charging (home charging) given much smaller batteries to compensate for the weight of the fuel cell and fuel.

Even the greatest H2 car is always just going to be a second class EV with "weird fuel needs".