My car has a private number plate and I want to keep it. What is the process? 08 April 2025 10:31 Updated You’ll need to place your plate on retention and have a new number issued to the car and the V5 document to match. Related articles Can I add my personal number plate to my new car before it's delivered? My part-exchange has a private plate — What do I need to do? How can I contact cinch? What if my car has imperfections that weren't previously highlighted? Does cinch offer GAP insurance?