I don't have to worry about snow but I dislike the white-knuckle ride I get on my Ford 3910 at about 18mph. If you happen to forget to latch the brake pedals together, you could end up going down the road like a turtle spinning on it's back. I have two entrances to the property. The main entrance is off a 2-lane state highway route and one off a county road. The county road has a speed limit of 35mph but the state route is 65mph. I'd have to take the state route to actually get anywhere and wouldn't even think about bobbing down that in traffic to get to the tractor dealer 3.5 miles into town. That would be a death wish quickly fulfilled.
Whatever you decide, be sure your tractor meets state laws regarding SMVs before hitting the road.