Aaron - every (?) major auto
Aaron - every (?) major auto manufacturer has an EV on the market or one almost ready for production. Plus we have brand new car manufacturing companies bringing EVs to the market. I don't think anything is proved by the statement that car companies are also working on HFCVs.
What needs to be pointed out, IMO, is that the first adequate range, affordable, non-petroleum vehicle presented is likely to establish itself in the market and dislodging it will be very difficult.
The only way to dislodge an existing technology (outside of direct government action) is to offer major advantages or major cost savings. HFCVs could win if they can deliver range that EVs "never develop" or if they become significantly less expensive than BEVs/HPHEVs.
For HEFCs to gain a dominant position, or even sustainable position, there would have to be an economic reason to create the support infrastructure they will need.
EVs/PHEVs already have most of their infrastructure in place.