Where is the run-flat technology here? With today's material science, it should be a no-brainer. A back tire just cost me $512.16 and the install will be another $100. If the GT eats tires like my souped-up R3T did, I expect I will need a new tire every season. As I do not know how easy it will be to get replacements, I bought one now against any shortages or shipping delays that some other parts seems to have had. From what I understand, my dealer will not install a tire that you did not buy from them, even if it is new. Is this common?