>>1019867>>1019914I like the Polish system. I can never memorize what the initial letters stand for. But I like the details like KR for Kraków and KRA for the surroundings, and OP for Opole and OPO for the surroundings.
The pattern behind the German license plates is this:
It starts with one, two or three letters which stand for the city or district. Large cities get short signs, because they usually have more cars so there's more options on the license plate. B for Berlin, M für Munich, K for Cologne - but HH for Hamburg, because Hamburg is part of the Heanseatic league. The next biggest city with H is Hannover, so the single H goes to them.
The sparsely populated areas get the longest names, for example NWM for Nordwestmecklenburg or OPR for Ostprignitz.
You can easily tell which state the vehicle comes from by looking at the coat of arms after the abbreviation TR (for Trier). Trier lies in Rhineland-Palatine so that's where the coat of arms is from.