The error could be attributed to pushing the wrong button or checking the wrong box after a 3 martini lunch. Someone dictating to someone entering information—g and c sound the same. My car was ordered parchment interior, came standard blue.36 years ago ('86) I bought an all original loaded Ash Gold '68 396 SS/RS from the original owner. The paint was still in good shape but I wanted to repaint it since my dad owned a paint and body shop as I had intentions of showing it on a regular basis. The color code per the POP and CT was C2 (Ermine White) but the car was actually painted G2 (Ash Gold). The owner stated that Ash Gold was the original color and I basically took it down to the metal in prep for painting and there was no remnants of there ever being any white paint beneath the Ash Gold. Tony Young who was a lifelong family friend and vary knowledgeable Camaro man who also owned a '69 427 COPO car (as well many other rare Camaro's) and my dad assumed it was a paint shop factory error.
This car has a very interesting story (at least to me) as to how it was acquired as the original owner said it was built as an "GM executive car" and it took him a while to get the sale finalized. I need to write it up and post it sometime.
That’s what makes your car different.