NHRA got their wish in factory X class
The last sanctioned race I went to was right before the race only Challengers came out.
The announcer spent what I thought was a shameful amount of time making sure everyone in the stands knew that Dodge did not have a car to compete with the copo camaros and cobra jet mustangs.
Fast forward a few months and I'm sure everyone knows the debacle of that sanctioning body trying to keep those Challengers out.