Wish mark for registration by a trader

Hello, soon comes the new A3 Limo and I am already full of anticipation. I will pick up the car in Ingolstadt (is still in production). Since I finance the car, the question arises to me, what this looks like with the registration by the dealer. Were you asked before, which license plate you want? Or does one have no influence on it, since the bank is also first “owner” of the vehicle? I would like to reserve a license plate over the registration office and then s Should the dealer allow with this reservation. Is that possible? Thank you!