So I bought an 1980 Cutlass supreme a few weeks ago and what I found when looking for the build sticker is on that year it was placed on the spare tire cover which is no longer with the car. .. I went to a gm dealer hoping to gain info using my VIN but they were unable to help.... how does one go about finding this info? I primarily need the color code... The car is orange which is the original color but the info I did find online about color options that year us they didn't offer orange as a color...