alt Hacker NewsThis is one of those cars that's interesting to me, but I don't know that we'll ever go this route in a significant amount. Problem is how complex it is to create hydrogen, although 'green hydrogen' is a thing, it would take quite a bit regardless. Interesting to note that if we could extract only 2% of the hydrogen burried under the earth, we could power the entire world for over 200 years. Which is crazy to think about.
The other interesting thing about these cars is the output is water out of the tailpipe.
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Creating hydrogen isn't the only problem. Storage and transportation is a big one since it is an actual gas instead of a liquid. Needs to be compressed, causes embrittlement, highly flammable, etc...
It's possible to create hydrogen from coal and carbon capture is supposed to be feasible. Though I don't know how commercially viable this is.
It's very easy to create hydrogen from fossil natural gas. Which is the real motivation behind 99% of H2 projects; continue to emit CO2, just hidden from the end user.
Battery electric is now pretty much inevitable.