The last time tanks were used in a European winter was WW2. The German Tigers and Leopards (old ones) were superior to the main Soviet tank, the T34 as they had longer range weapons and better communications and tactics. However they were out produced by the Soviets and had maintenance issues. Also once the Soviets and allies achieved air superiority it was all over rover. I suspect the same will play out today, and I am being generous giving individual superiority to the Ukrainians..