My guess is that it's a customers car that they supplied and are now selling on the new owner's behalf....
That's a hideous plate IMHO and illegal - so breaking the rules of their franchise by charging overs and creating and fitting illegal plates, nice touch.
If I went into Drift Bridge and asked for some illegally spaced plates they would rightly say no so one would assume, possibly incorrectly, but possibly not that a staff member was behind the plates and therefore the sale of the car, but they of course may not be.