I bought a new car trading in the old one, I asked the salesman to have the car ready with the private plate transferred to the new one, on the day we collected the car we filled her up at the dealers with petrol and the salesman was there doing the same thing with the car we had just traded in, we both drove out in two different makes of car, but with both showing the same registration number.
I bought a new car and the front and rear plates were different via 2 transposed digits
I bought a used car and when the paperwork arrived from DVLA, it showed that the car had a different registration to the year one that was on the car, the DVLA had it still registered with a Private Plate, so I put it on retention and later sold it for £1100
I traded in a 740 BMW in Avus Blue for a 750 BMW in Biaritz Blue (almost the same colour) I had a Private Plate on it and asked for the plate to be transferred to the new one - I had not told my Son that I was buying a new car - I picked him up from School in the afternoon and went straight to pick my new car up, it was outside and I drove up behind it and parked - my Son saw the Blue 7 series with my Private number on it infront of him, BUT that was the car he was already sitting in - he looked at me puzzled and speechless.