I don't know where you live, but where I live there is considerable snow, freezing rain and lots of hills. While I love my Volt, I will be the first to admit that it is not best car made for winter conditions. 1) there is not enough ground clearance for avoiding "plowing" through snow if it snowed 3" or more. Plowing is not nearly as safe as not plowing. 2) The car tends to understeer when loosing traction, which is not as desirable as oversteer. 3) running high tire pressure to maintain economy isn't the best thing to do when searching for traction. (Snow tires do help immensely) 4) the cabin heating system is lacking compared to an ICE car.
If you live on flat land, and only drive on plowed roads, the Volt will suffice, but even then it is stretching it to say the car is a good car for winter driving compared to many other vehicles.
All that said, I still love my Volt, but drive my old 4wd truck or will drive my wife's new Hyundai Kona when the weather gets really bad.