I think you might be mis-understanding slightly? In the UK the date is on the plate as part of the number e.g. AB25 6CD would be on a car registered in 2025. We don’t have anything on cars like a registration (tax disk went long ago) number plates are big and plastic here for some reason, someone smart could probably explain why it’s good or bad.

Polish friend of mine says Radom and Kielce are a bit of a shit hole.