>
> they got this personalized plate on purpose.
>
> It's highly unlikely a personalized plate, but rather just part of the
official sequence.  "2Rxx###" is consistent with the incremental  state
issue for 1990. Previous to 1981, California issued blue with yellow letter
plates in the pattern of "ABC 123". Upon reaching "ZZZ 999" they went to
"1AAA000", in the middle they transitioned to silver reflective material
from blue/yellow, from "1ZZZ999" they went to "2AAA000", etc.

--
John Bange
'90 Vanagon - "Geldsauger"