Hi Although i believe the 365 GT 2+2 fitted Pirelli's 205VR15 Cinturato CN72 which they are making again I often see Ferrari of this period fitted with Michelin's XWX. This French web page https://www.longstonetires.fr/pneu-voiture-collection/ferrari/365/gt-2-2.html has a great deal on the 215/70VR15 XWX if you want to take advantage. I would be very interested to hear peoples opinions of the differences in the 2 tyres.