In all my years of looking at every 1968 Camaro (best year) I come across, I have never seen what CRG is looking for. That does not mean it does not exist, just pretty rare.
A blue, red, gold, or turquoise interior with a matching color blue, red, gold, or turquoise ashtray. Not black. Not woodgrain. Not owner modified.
About as rare as hen's teeth.