I just did a search on ebay for 1970-1974 any brand or model, to see what kind of cars have survived 30-35 years, and here's what I came up with.
Lots of GM, Mopar, Ford, and Porsche.
A couple of Opals (?) Jags, and Mercedes Benzs, and 1 VW.
I only looked at the first couple of pages, I didn't go down below the premium listings.
Nice to see that so many of our friends survived.