I live in wisconsin and have an 05 crossfire 6 speed with performance tires, all i know is that i can't drive my car even with like an inch of snow, a few days ago i almost slid through a red light, and then after stopping at the same intersection i almost got stuck going through the instersection ( have a 100 pounds in back for added weight (very busy 3 lane highway intersection going all 4 directions(scary). so i am looking to possibly trade it in for a 01 audi tt quattro roadster. (posted this elsewhere). all i know is this car was not made for snow, but its fun as hell in the summer.,