Interchangeable Rims & Tires Want to Use older Snows and rims on RLine

Have returned to VW with a purchase of one of the R line packages that turned my head recently. I love this 2018 Passat and even though it does not rip up the road, at my age now, it is the PERFECT car for me and runs like a watch so far and the mileage is outstanding for a larger family car that has that wonderful sporty look. White looks great on this car BTW. This of course comes with the larger, 235 40R 19 rims, and they do add an impressive stance to the car. Now I sort of loosely understand the use of other VW rim diameters and tire heights.

215/60 R16, 215/55 R17, 235/45 R18, 235/40 R19, 245/35 R20

to keep the same overall diameter... But I am curious about the brake rotors and calipers on this car? Clearance issues with the 16" rims? I have an opportunity to buy 4 nice older Passat Rims and Snow Tries.. 215 60R 16..... Does anyone have any experience with using the older rims and snows for Winter.. rather than dealing with changing tires out twice a year it is easier with a second set I can more or less do myself if I want.