M-G (plus I thought you cannot buy a new car in another memberstate and then drive with it on local licenseplates, but I'm not fully sure about that)
You're right. You get temporary plates to drive the car to your destination (unless you plan to pick it up with a low-loader) and register on arrival. Make sure you park in a secure car park until you have the local plates sorted: car thieves love the temporary plates because they are near enough untraceable.