It is possible that this thread either has morphed in to a what gets people interested in the hobby discussion, or that that question runs parallel to the original.
The fact is that for most people not already in the hobby, American cars are the most likely to resonate with people within the American market because it is with those cars that the new onlooker likely already has an emotional bond. I’ve spoken with people locally, from hobby shop owners to visiting repairmen, and all of them lament the lack of American iron. The local hobby shop said that they can only sell so many Can Am and rally cars, and that their customers ask for classic muscle cars that simply aren’t manufactured. The repairmen show vague interest in my cars and then light up with excitement when a Torino, Charger, or Superbird is shown, as they hold them and go on recount memories of burning rubber in their youth.
Personally, while I grew up watching Indy and Nascar in the ‘80s, I also listened to the stories my dad told me about the European racers of the 50s and 60s, both in GP and sports cars, so I actually prefer classic race cars because I find the history of the machines and the men who both designed and drove them fascinating. Collecting and running those cars are sort of a way to honor their memories.