Hydrogen ICE is not a viable technology for many reasons. Combustion temperatures would require exotic alloys to manage and the power density is quite low. I remember BMW made a H2 ice version of one of their large V12s and it made like 125hp...
It's also really hard to store. The tanks need to be made of exotic materials and withstand incredible pressures.
It's also really hard to store. The tanks need to be made of exotic materials and withstand incredible pressures.