I have a 70 Opel GT with 13" tires, which are about impossible to find anymore. The car gets driven about 5 times per year max, and the tires I run on it presently are my old Yokohama A008 SRF rain tires. I sold my SRF in 1998, so that tells you how old they are. Amazingly, they are not weather-checked yet, but something tells me that 15 year old tires can't be a good thing. I understand that you now have a new rain tire in SRF, so if anyone in Arizona wants to sell me their old rains, please PM me. Might as well get something for them rather than throw them away!