How does the new number plate system work? Why have they started at 50? Also, is there anywhere I can find out what prefixes are for what areas? How do they decide on the prefixes as well?
the 5 in 50 indicates the second registration period of the year, the 0 is for the year 2000. So
Year Range 1st reg period 2nd reg period
2000-2009 00-09 50-59
2010-2019 10-19 60-69
2020-2029 20-29 70-79
2030-2039 30-39 80-89
2040-2049 40-49 90-99
note that the system started in the secod period 2000 so that's why it started at 50. New system needed for 2050!