RE: The reason for the non-mopar colors
Bootcamp I agree with most of what you said but I feel that maybe challenger owners aren't necessarily "ordinary" customers. Charger and 300 yes. But wouldn't anyone buying a challenger come across as someone trying to be different? And they would probably want a color that's different than what's on a sedan? I don't think challenger buyers are cross-shopping camrys and I don't think they would want the same color choices.
I can't imagine someone at the dealership looking at a challenger r/t going "I really wanted this car but I was holding out for smog grey". Yeah dodge has to target the "majority" but that's the majority of sports car buyers, not the majority of car buyers in general.