Can any car drivers display "P" plates?

I have always wished that there was a plate with either E for estrangero, or S for stranger that we could put up when we first arrive in a new to us city. I used to know my way round Birmingham very well, and I am a competent and confident driver but it is years since I went there and if you could put these plates up , it would tell the local driver that you are liable to be in the wrong lane or not very sure of your way round. Hopefully this would mean that they would allow you a little leeway and it would help people to know you might not be very sure of your way at roundabouts. I am not sure about the legality of using the P plates, perhaps a look at the rules of the road might tell you

P plates (or D plates in Wales) are not a legal requirement, so you can leave them on your vehicle as long as you want. In Northern Ireland, drivers who have just passed their test have to display R (Restricted) plates for a year.