Hi. I am a soon-to-be 2019 XC60 T6 R-Design owner. It comes with 21" wheels but to survive harsh Canadian winter (eastern Ontario, Canada), I will need as much rubber as possible.
I scanned the forum and there were a couple of mentions of someone sporting 18" MSI rim with 255/55-18 AT rubber. What about winter? What do you guys use that's a perfect fit and doesn't affect the electronics (pilot assist, etc.)?