I am considering buying a 3.6 CTS with package one below sport package ,as i would prefer 17" rims. I drive in Michigan mostly and Ontario. Can any readers share your insights on the behavior of this car in ice and snow. Its important as I commute 100 miles daily each way. I have a FWD 9-5 Aero now, which has been reliable to a fault and tractor like through snow. i am looking however for a change and greater service availability of course.In winter I have used Nokian Haakkes.