One of a kind ls-s???

Ok so I checked out a thread for the trim levels of the teg and how to identify them by the vin number info in this thread

http://g2ic.com/forums/showthread.php?t=168710&page=1

now the list goes up to the number 8 which is ls special but my vin number is Da939 and 9 doesn’t seem like it exists

Car is a 91 ls-s according to the title and based on the interior and features I have so I’m very curious and wondering if any g2 gurus have any insight on it

no one has any clues to this? surprising lol