Date registered: Oct 2003
Vehicle: 500SE AMG, E350 4matic, GL 450
Mentioned: 0 Post(s)
Quoted: 91 Post(s)
I would think if there is a plate on the car, even a paper plate, it will be much likely you will be stopped as oppose to not having anything. It just eliminates some of the hassle. In the event the OP is stopped, he will have the paperwork but I will expect he will have no issues unless there is some sort of traffic violation or the like.
BTW, if you are not confident in the person you are purchasing from and have not done a ppi, traveling to pick up the car is a great idea if you have the time.