I just drove these tires on my new audi ttrs for 200 miles from northern Maine in a snowstorm. From now on, I will call this car with these tires my, snowmobile. The traction was unbelievable, performance predictable, and response in these miserable conditions was impeccable. I drove by accident after accident with nary a slip. I live on the top of a large hill with steep switchbacks. The grade approaches 10%. It was unplowed; no problem, no slip or spin. If you have a high performance car you drive in winter, get this tire.