My opinion, fwiw, is that batteries have won the day in the automobile space. The infrastructure investment required to make hydrogen work for automobiles must be astronomical vs incremental improvements required to the existing electrical network.

Couple this with the fact hydrogen distribution and storage have some significant problems, plus recharging at home/work/parking is super convenient.

The only real thing stopping battery powered electric cars from being the obvious first choice in many markets is the cost of battery packs. Conveniently this has progressively improved yer-on-year. It is simply a matter of time.