Since they have mentioned vehicle customization (I believe), I really think that you will have some way to deploy a vehicle... or at least that is what I want to believe. It would feel awesome to deploy your own custom Pike from some small hangar on your ship. That being said, the ships they have shown don't seem to be big enough to haul other vehicles. If I could have a vehicle, I would want some sort of swamp boat to cruise around Old Chicago with.