I'm just going to say I have seen the super sports crack in sub-freezing temps first hand. Z06 cracked all 4 moving 4 feet on a cold day. And I'm sorry, but running summer performance tires in the winter is absolutely stupid and dangerous. Everyone I've personally seen that's running their car in the winter has gotten all seasons or winters put on. And as for our Canadian friends, I know for a fact none of them run summers because it's illegal in Canada to not have winter tires.The key word here is IF STORING. Your not storing them if on car and its outside plus they are aired up on rim. They're talking about if not on car and you want to store them not to leave them in 19 degree or less weather. SHOW ME a single post where a car left out in the cold and driven have had cracked sidewalls on the Gt350 (not the R). There are people all over that drive theirs all winter long and no problem with tires cracking only safety issue when really cold for summer tires. Do you think no one in Canada ever drives there car in the winter with summer tires on it. And every one in winter where it gets really cold have a heated garage there car is in. Good try though!
I'm not trying to nitpick you dude, but the Z06 comes with the super sport run flats unless you get the Z07 package.Iceage your full of it. Like the way you dodged the fact they only say IF STORED in the manual. And no all of us that still drive our cars in the winter don't go driving like hell. Myself if streets are dry I will drive it around slowly for awhile till tires warmed up and then if not extremely cold even though below 45 degrees may drive two miles on highway at a careful speed out to the store just to enjoy car. You need to check other Shelby forums. Every winter this subject comes up and theirs always those that misread what the manual says (not what Michelin says) and a lot drive there cars in winter CAREFULLY with summer tires and no they aren't going to crack. Do you even have a Shelby GT 350? And to answer the post above. I didn't know about Canada and winter tires so apologize, was wrong on that. BUT the Z06 has cup 2 tires on them and yes they will definitely crack. Done with you. You can't fix stupid!