Short answer - no
Long answer - a land based vehicle has to track the ground reasonably closely in order to look halfway good, and that is hard. It was just about possible to sort of cludge it in FO3, using various workarounds none of which were ideal. In Skyrim, because of changes to the way scripting worked, the only feasible solution was to either have a cart, going not much faster than a horse's walking speed, or have a car-shaped horse (which is an ingenious solution, but really didn't look all that good), or a piece of car-shaped player clothing.
FO4 will certainly have the same scripting system as Skyrim, so trying to get a flying vehicle (a vertibird) to hug the ground closely enough to look like a land vehicle... you just won't be able to adjust it's height on the fly quickly enough.
So we're either back to having a rideable animal shaped like a vehicle, a piece of clothing for the player shaped like a vehicle, or maybe an entirely physics based vehicle. Trying to get a physics-based vehicle to travel at speed without flipping over will be very challenging (I suspect impossible, but we'll see). Getting one going slowly (faster than a player running, but not much faster) will be challenging, but should be do-able. IF we're able to get new models into the game. We might not.
[disclaimer] - I'd be delighted to learn of any way this was sorted in Skyrim which I'm not aware of