I've seen this tire in a lot of photos of old Porsches. Crazy expensive, though:
https://pmctire.com/en/tires/pirelli/p6000/pirelli-p6000-195-65r15-91w.tire
A fellow PCA member in Ottawa has this tire on his impeccable 1971 911T and it looks great - he's happy with them:
https://pmctire.com/en/tires/pirelli/p4-four-seasons/pirelli-p4-four-seasons-plus-p195-65r15-91h.tire