I think most of us assume there will be some kind of vehicles for transportation in this game rather then the long distance stuff like planes and trains. Cars, trucks and bikes all come to mind. If it's opening gateways for instantaneous travel I would be disapointed.
Now if these are included, I'm curious how they would be stored when not in use. Do they involve a significant investment of location and you need to remember where you parked your car? How about a valet follows you everywhere you go and parks your car for you? Or would you prefer to screw immersion for gameplay and just click on it to summon your harley ala WoW?
I'd also like to be able to run people over...but that might just be the morning traffic I deal with on my commute to work giving me ideas.