I've wondered who comes up with the plate number patterns, and the thought process behind it.

Like when the pattern "123 ABC" (as pictured in this post) ran out of unique character combinations, they went to "1AAAA1", which DID use the number zero, which was hard to read, and you'd see a bunch of combinations that looked like really weird personalized plates. Like one time I saw "OAT UNO", haha. Then they switched to the pattern we use now, presumably because it's easier to read.

Also it seems the plate pattern "00 AAAA" is used for motorcycles and classic vehicles. This pattern has far more unique combinations than other existing numbering patterns, but motorcycles/classic vehicles are such a small portion of vehicles overall - so why would they use that numbering pattern?

I know, weird stuff I notice when out driving.