This is entirely anecdotal; but since the new Corvette was released I've noticed that I seldom see any Challengers or Chargers on the road, in driveways, or...much of anywhere for that matter. I used to see a ton of regular consumers driving Chargers a few years ago but since then they are mostly police cars, which doesn't really count. Even less so for Challengers...
But I have seen the new Corvette a ton, perhaps because it resembles a Ferrari.