I'm not in MI, but Ontario is close enough, weather-wise, so...There are a number of snow tires for the 17" rims. Among other sites re same, try:
http://www.tirerack.com or:
http://www.discounttiredirect.comMany people however don't want to expose their nice aluminum wheels to the salt, nor do they want the hassle, damage potential and cost of twice-yearly tire changes and balancing. Ergo, they park the performance tires and rims for the winter and go with either stock 16" rims & 205/55 snows, or skinner (& cheaper) 195/65s on steel rims (which are felt to bite better in deep snow). An additional advantage is a much wider choice of tires and price ranges.For the record, I sold my stock steel wheels and tires before I even took delivery of my base Vibe and used the money to buy 195/65 x 15 Dunlops Winter Sport M2s on cheap steel rims. I am fitting a set of fat tires on 17" rims soon for the summer.