The last Land Rover defender was produced on 29th January 2016. From the 1st September 2015 until the end of February 2016 the age identifier on a UK reg would be '65(e.g BH65 XLO).
In the UK you cannot have a number with an identifier which is newer than the date of manufacture for your vehicle.
My question is, how are there Land Rover Defenders that have an age identifier as '16 (which would be from 1st March 2016 until August end 2016).
See image below for '16 plate Land Rover Defender.