Yes, it would be interesting indeed.
However, we probably have even more competition today but, they're mostly from the Asian brands.
Even many of the European brands during that time of those cars you mentioned, weren't sold here on as a mainstream vehicle. We may have seen them now & again(in my area) but they may have been imported by speciality dealers(in select regions) or the owner themself.
I mean, during that time in my area(just speaking for myself), we didn't often see those import name vehicles very often(Audi, BMW, Mercedes, Volvo, VW). And sadly, I don't often see in my area those cars you mentioned(Duesenberg, Cord, Auburn, Nash, Tucker) even at car shows. . . SADLY!
And if you owned one and saw another on the road while driving, you would certainly🖐to the other driver or give them a
Once in a while we'd see a British roadster pass by that would turn our heads but it wasn't often. It was so interesting to see.