But I think what @JohnSnowNW is referring to is that the point of hybrid is that you can fall back on a more readily available fuel (petrol/diesel). Where would you take a car that would have hydrogen available but not DC fast charging?
well you can always plug it in with this concept even 220 and you can fillup hydrogen so always a fall back and for me a hydrogen station is better available that the charging points but thats a matter of time becouse our charging point at the company is broken
the point for a range extender is purely you drive on the batterys and when you need the extra range like for a long trip you can turn on the range extender
i am not against one or another technology if you can do it with eletric battery powered you should do it if not hydrogen comes around
we mostly use it in delivery vans and international transport that needs to drive more than 200km range
and they also need fast refueling times
this is just for fun as i said its one of the products we build at our company so just nice that i have it in my own car too
and together with this i want to get some better performance out of the car but this is another project