[442w30]

Just because there are two dashes does not mean it's not a non-Pontiac color. For example, if my car came in Rallye Red (which is the same as Carousel Red, I believe), it came with two dashes, even though it is designated as an optional color. I am not sure why that is. I feel the two dashes for your car is not determinant on whether it was a Pontiac color or not because Goldenrod Yellow is obviously a Pontiac color.

The two dashes has confused me and I am not sure if there is a rule of thumb to it. As I know it's been used for RPO and non-RPO colors (for a respective model) as stated above, it seems like there is no rule of thumb.