Hello municipality, I would like to install a privately loaned bicycle carrier on the trailer coupling on my car combination and thus go on holiday to Austria. I realize that I must not exceed the support load with wheels and carrier. The fuel consumption should be 1 litre more gas. Now my questions about it. Must be on the carrier the same number plate as on the car and/or can I remount my car sign from the car to the carrier that the car is behind without shield? Do I carry the papers from the carrier? Thank you and greeting Frank