I think it will depend on how you plan to clear snow ...
Would you be using a snowblower, front blade, or rear blade?
I would think it would run a 36 or 40" front or rear blower nicely.
Not sure I'd want to try a blade in much over 6" of snow, especially if it's wet snow.
It's a very interesting machine - almost like they updated our
B5100, in terms of specs:
12HP, 3x2 trans for 6 speeds, Hi/Lo PTO, etc.
It is heavier, has much better 3pt lift, and a less cluttered work area.
http://www.hortweek.com/Turf/article/1079996/kubota-b1220/
The price is right up there, too, at 6615 pounds + VAT.
I think that works out to about 6615x1.56x1.20= $12,400
I wonder if Kubota would even consider importing this model to the US?