IIRC, the GB signifies British, while the left hand blue edge & circle of stars shows that it's a plate for a vehicle that's recognised Internationally & especially in the European Union as a legal vehicle & one that's had all the necessary international road taxes paid, so it's legit to drive on any EU roads and doesn't have to pay the extra road taxes that 'non- EU' cars hafta ante up for in each country.... or something along those lines! Whenever we travelled (driving) thru EU countries the cars with those plates breezed thru the various check-points, while the cars without that left hand edge copped all sorts of extra checks & fees!! :sour: The GB bit is specific to Great Britain, as opposed to Scotland or Wales etc. Not all British cars carry that sort of plate, it's cheaper not to - IF you don't ever intend to drive your car outside of Britain, but then not all British owners want to drive their cars in other EU countries. I guess that sort of plate designation will all change come BREXIT, so that plate might eventually become a rare collectors item - or not! :shocked: