I think the problem is also that Bethesda doesn't really "do" vehicles, probably due to engine limitations.
Usually, it's just horses or "passenger" travel (like when you man the guns in FO4 birds). I guess one could maybe consider power armor in FO4 to be kind of like a "vehicle", but it works more or less the same as just walking around.
Oh, there is dragon riding in Skyrim, but it's a mess and you don't have that much control.
I'm surprised the engine can even handle space combat, honestly. And 360° movement as well, which would have been great for dragon riding in Skyrim. But most of the dragons in TES are dead, so we probably won't get proper dragon riding in whatever TES: VI is.
(Sidenote about dragon riding/combat: Before Larian delved further into CRPGs, they made a regular third person RPG where you could play as a dragon. It was actually pretty fun. Still didn't have full control, and it was only in certain sections, but it was entertaining. Divinity II: Director's Cut, in case anyone's interested. Don't know how well it's aged, but I enjoyed it a few years ago.)