Yeah, I think so too. So far nobody makes them though.
The originals were 14 and 15 inch. I did see someone making chrome Rally's at Carlisle. The spokes were chrome, but the center cap was argent silver. I think the biggest they made was either 16 or 17 inch. The problem is these were for original E-Bodies, so the backspacing wouldn't be right for the new Challengers.
I guess we can only wait and hope as I would surely jump on the bandwagon.