You could spawn this on any vehicles spawn brick. You could also be able to take another vehicle and back it up so the back of the other vehicle would touch it. So when the vehicle touches it it would put a message in the center of the screen (like a centerprint) and it would say:
Do you want to link your (vehicle's name) to this trailer? Then it would say: Say /yes to link or /no to decline. It would be cool if the trailer could also have places to sit and if there is a different model other vehicles could land on it "click" into place.
