I cannot find any reference online, but in early 90's there was quite huge effort of using hydrogene in cars. Mercedes,iirc, with some other german tech companies, were running a kind of pilot project on ? Berlin airport? . Passenger buses, fuelling stations, logistics. There was a lot of hype around when they started. The project was abandoned silently few years later, but not becuse of fuel cells. Additional expenses l think. All the losses in transport, storage, "gas station" equipment costs orders of magnitude more than hose and funnel, ersonnel salary as you cannot let average Joe handle sub-zero pressurized nightmare.
All this made hydrogene cost prohibitive for average-sized "gas station" even befor the hydrogen could actually move a car ( save pathetic effeciency of fuel cells of that time).
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