It probably does make sense to move car from Ghost farm (likely it's not included in scripts because normally player doesn't have the car at that point)
Brahmin drive is a different matter, it's explicitly on foot, or at least mounted, not on car, so no change is warranted there.
What happened
Traveling with car & teleportation events
What you expected to happen
I expected that the car is 'NPC' and should move with me.
Screenshot
Savegame