I'm looking at a 2016 Q70 with the 20" wheels and sport brakes. Can someone please answer some questions so I know what I'm getting into. I may need to buy winter tires for it someday and I'm exploring my options for that setup. I don't really want to remount tires on the same rims between seasons. So to make it easy can someone give me some ideas for a winter setup that fits over those big brakes. I already did some searches here but I couldn't find all my answers.

Also what kind of tire life are you getting on the 20" wheels. Just under normal driving conditions, no burn outs etc. Thanks!

I believe 19's will fit, but 18's won't for sure. As for tire life, I get about 25-30k on my 20's but I drive hard.

I'm hoping I can find some used rims for winter. I saw a G35 today with oem 19's and sport brakes which got me thinking. Do you think something like that would work?

I believe the OEMs are 19's. I'm running 20's