Question: what does aa on a license plate mean?
Evidence: It's a somewhat new license plate format. They're part of the license, read top to bottom. This would be 2AA1619. They can be at any point ...
In Illinois, for example, new plates have been following a AA 11111 pattern since 2017. If you see an Illinois plate with an AA1 2222 series, ...
Answer: cars of the royal family