Senwar >>> keep in mind mine is a 2WD SDrive...
We got slightly less snow here in Burgundy, but the X1 won't climb the steep street without fishtailing all over the place and if I have to stop uphill, it's back down and J-turn, as it won't move up again.
A bit annoying indeed.
My last RWD was a 2004 Dodge Magnum I drove thru a couple Ontario winters, and with PosiTraction (differential lock) and winter tires, it just never let me down.
I must admit the DTC function is not that impressive on the X1. Not sure it makes a real difference, so I hope winter tires on the rear wheels will !!