just wondering who has these and how they are, it says that they have 360 treadwear, i don't really know what that means, could someone care to explain cuz i'm saving up for my rims, and i'm gonna buy both those and tires at the same time, and i've been looking into these tires, i found them in size 205/45/16 for $330 shipped, so any comments on these tires?