Any vehicle we can use, at least like in fallout 2 (enter, cutscene, fast travel, cut scene, arrival and out of the car)?Actuallyy, I do know it would take a lot more (many hours more, much more memory space, ) to make it possible to have drivable vehicles. Let's face it, it would be a very unfair advantage, but mostly it would be against the purpose of the game, since players would be tempted to pass by in a hurry through places, instead of exploring deeply the details and amazing creativity, All the care and craft engineered by te developers. So I understand.
Still, could be fun in the later stages of the game