VEHICLE MANUFACTURER 2015-
Manufacturer plates on the flat base were first spotted in 2015.
FLAT BASEDTM oo00
OK, what's with the really weird numbering ??
I'll assume that for DTM 1359, 59 is the manufacturer code and the little 13 is the car number.
There are flat manufacturer plates with the standard 0000 DTM (or DTN) numbering as well.