The window sticker for 464 is on eBay
eBay Motors: Buick GNX ORIGINAL window sticker ASC grand national (item 260208103686 end time Feb-10-08 21:00:00 PST)
eBay Motors: Buick GNX ORIGINAL window sticker ASC grand national (item 260208103686 end time Feb-10-08 21:00:00 PST)