The '02 TT quattro sees most snow duty, but the M4s have been snowed on a couple of times.
This was on a trip to my parents'. The interstates and state highways were covered with snow, but the car did well with the Hakkapeliittas; only slightly understeering once (getting back onto the highway after this picture was taken, when turning onto a snow-coveredcovered onramp).
The gray one was frozen once as well.
The red one was only in the snow once, an unusual March snow on my way back from getting the windows tinted right after I got it.