Natural gas vehicles (NGVs, CNG)

[doug]

Of course I could point out that this is just garage fueling. Presumably an industrial-sized compressor at a proper filling station could do the job a lot faster.

Yes, you could fill CNG as fast has HFCV advocates claim you could fill with compressed H2 (but with a fuel that is much more energy dense by volume). So it's possible to fill in a few minutes.
HyFLEET:CUTE :: Technology :: Hydrogen Refuelling


Since the only "efficient" way to make hydrogen is from natural gas, I've often argued why bother. CNG ICE vehicles seem to have all the benefits of HFCVs at a much lower cost and can leverage an existing infrastructure.