1 of 1 as far as exact RPO code matches go, and 3 cars with at least as many options. That's pretty much where the rarity ends lol. I did find out what day my car was built, which is pretty cool

 

I just want the VIN lookup to work just so I can get a complete list of RPO codes for my cars as I don't have the RPO stickers in the cars and no build sheets.

 

You may have to contact PHS and pay for the service. It appears, for the older years such as what you have, only Exports are in the database that Compnine has. You could wait it out and see if they can expand on their records for the older ThirdGens, but it may be a long time (if).

 

Yeah I've thought the same thing. It's not necessary as I can tell what my cars have in them for the most part relatively easily, but it would be nice to see all the RPO codes to satisfy my curiosity. I know my 1985 Trans-AM has most of the options offered that year, but that's about all I can tell you. My 1987 car appears to be almost a "base model" Trans-AM.