I use, stock 17inch wheels with summer tires during warm months, and stock 16inch wheels with Dunlop Winter Sport M2 for the winter months. The snow tires handle the winter months OK, but on the other hand in Chicago area there isn't too many days with the snow laying on the streets, I guess the city and state are doing fairly good job plowing the snow. The GS handles much better with the snow performance tires than SC with all-season performance ones.