Size options for winter rims and tires
 

Hello every one. I just became the owner of a new to me 2015 300S awd. I would like to try and find a second set of rims for winter tires. The first place I checked was Tire Rack but they have no 19" wheel options available. I just wanted to see if anyone has had any success with other rim and tire sizes, I really don't want to go larger for winter time use. Has anyone had any luck with "18 or even a 17" rim?