Its certainly possible, but presently not particularly popular. I believe that hydrogen technology will really struggle to become economic most use cases for light vehicles.
That being said there’s interest in hydrogen combustion from motorcyclists and some manufacturers (see the post from Andreas Esser above), in part to retain the sensation of a combustion engine in the riding experience.
I think this is interesting and perhaps some people would pay for the ‘combustion engine experience’ in a zero-emission vehicle, but I’m not convinced that people who are just needing to get from A to B quickly, safely and cheaply would care that much about this.
I’m curious, what do you think?
There’s a bit of history for two wheelers which I can share to back up the consensus of this thread (so far) that it’s possible. Perhaps you’re familiar with these examples, but if not perhaps there’s something of interest to take a look at here.
The Met Police in London trialled a fuel cell powered commuter scooter made by Suzuki back in 2017.
For more info: https://bikes.suzuki.co.uk/news/suzuki-hydrogen-fuel-cell-burgman-trialled-by-met-police/
A few years before this Suzuki collaborated with Intelligent Energy, a fuel cell manufacturer from the UK. From what I’ve read that was about an air-cooled fuel cell, which for light vehicles with small power requirements helps to keep the weight and complexity down, just like the air cooled combustion engines seen on scooters.
For more info: https://eepower.com/news/intelligent-energy-and-suzuki-collaborate-on-3-9kw-fuel-cell/#
Similar to Roy Niekerk’s post above there’s been increasing interest in ‘e-bikes’ incorporating small fuel cells to compliment or replace battery packs.
Another example which appears to offer ‘hydrid lithium-ion and metal hydride storage solution’ which is quite unique and perhaps could help small vehicles enjoy ‘the best of both worlds’.
For more info: https://www.weforum.org/agenda/2021/11/studio-mom-designs-hydrogen-powered-lavo-bike-technology/