No, 041 is a dealership association advertising fee.

I've checked my archives, I don't have one shot of the correct cap except for one Pontiac document. I did see one firsthand, in a TA convertible, but could not take photos.

The photo shown in the Dealer Brochure is of a prototype wheel, not the one that eventually made it onto the cars. This car has many dissimilarities to the production cars.