Hong Kong: vehicle number plate code decoded?

Over at Simon World, Simon asks the question: For those in Hong Kong, why are government official plates all "AM"? Does it stand for anything?

What a good question. Curiosity aroused, Mister B decided to ferret around. . . um, googling led to Wikipedia and Hong Kong car numbers (Special Prefixes).

Bingo! AM = Administration.

Having posted that info at Simon World Comment, Mister B thought the moment also opportune to post a photo here of one of the several one-man operated (there are no women operators, yet) Mad Max-type fire tenders which serve the population of a little island in the South China Sea:
















Yes, the Mad Max machines are all registration F.