This is kind of a letdown but I am glad you guys are bringing attention to this matter. Does GM recommend a tire for all season use that would work well on the zl1, have they tested any other tire combinations? I don't wanna sound like a jerk when I say this but I guess GM assumes that if you buy a 50k plus vehicle and want to drive it conditions not suitable for the stock tires, you can afford replacements or an alternate set? Seems fair!
