Based on what document they will register your car? Your passport?
The last few times I've registered my car the office have been most interested in my maldunek. The passport they want to see only as proof of ID but the maldunek is what decides how long they will register the car for.
When I imported my car years ago from Belgium when I moved here, my Pesel was surely needed.
Perhaps that was because you needed to pay tax on it? All I know is that I bought a car and have registered it a few times and have never once needed to give them my PESEL number.
how that ((harry)) and where i have to go??
Simple: you go to your local vehicle licensing office with the ownership papers, your passport and your maldunek.