allowing to fast travel be animate mean, u kill all the randon encounter u have from point A to B, and that was the main issue about the stupid mod on Skyrim.
On fallout 2 using the card mean u avoid the random encounter plus the whole idea that u move between zone inside a full region no just one part of it.
Isnt the same and the difference between and horde or a motorcycle when u implement it correctly is that u can get dismount with combat while u cant when u are inside a car.
Look a game like Witcher 3 where u can get dismount when u get attack while mounting, but at the same time make combat irrelevant since u can just kill pretty much everything while mount.
Making a vehicle on a game like Fallout or ES been relevant mean u will kill most of the exploration bc ppl tent to exploits those mechanics is more u will probably kill combat too, bc ppl will choose to run over other that actually dismount and fight.
A good example of this is what easy was to exploit combat on Skyrim will mounting.
and i know the game is inspire on Mad Max but Fallout isnt a car combat game like Mad Max or Rage are, and i will hate to see it become something like that, bc if u play Mad Max game u will notice the main thing the maps have is open space to just drive around.