X3
I don't mind seeing old cars at shows, even the most common ones. I don't like to see stock 2013 mustangs though. I can see them in the showroom & drive them if I want. Something that's different or has original touches is good too.
At the Panama City Beach show a couple of years ago, a guy had a late20s or early 30s Ford pickup that was Ford powered (302 maybe?). I complimented him on keeping it that way.