Well, you go on about tires and then you say Personally I would never keep a luxury or high performance car past warranty. Which suggests you mean, because of

Well, you go on about tires and then you say Personally I would never keep a luxury or high performance car past warranty. Which suggests you mean, because of the tires which is an odd thing to say. Now maybe you didn't mean because of the tires, but then (to me) your post reads like a jumble of unrelated thoughts.