I’ve been using snow tires every winter on an A4 Quattro for the last 13 years or so, with Blizzak and Wintersport being my favorites. I’ve always been on the same 18” rims and swapped tires. This will be my first winter in an M3 AWD. I do a lot of winter driving for recreation in the Washington Cascades, and am wondering what advice other AWD M3 owners have. Specifically, tire choice, PSI, aero covers, and going with a separate set of winter rims vs. just swapping tires.