No I.C powered "what-so-ever", as the exhaust causes smog.
With modern application of technologies
Maybe AMA could take the lead in bringing forth developement in
Hydrogen fueled Tubine/Recip IC.
Cause, as usual, the ilinformed bunk about all IC causing smog is hooey in a H2 to H20 burn... unless they want to declare that the ocean is the biggest smog producer on the planet making all that water vapor... making H20 smog we call "clouds" and "rain".
Muncie has the ear of model manufacturers (or used to at least)
maybe AMA can be the driving force on Hydrogen Power