Today I was kinda intrigue as to what my 19'' Toyo T1-S price was for a set of 4. Then I research my stock tires which I think majority of Z's come with 17 or 18'' Potenza's. The freaking stock tires cost more than my staggered setup of tires I have on my Z by 200+ more dollars. That's crazy and I'm thinking to myself why is that. Does anybody have any ideas as to why this is, shed some light on this subject?...TIA