Tires OEM Audi or GT Radial

Tires are 235 40 18 GT Radial Champiro UHP1 Ultra-high performance summer tire ^ VERY sticky tire w/stiff side wall (nice handling and picks up lots of little pebbles - but I would not trust this tire below 40 degrees)

I run a set of GT Radial WinterPro HP. 245/45/17 all around. Very cost friendly set of tires @ <$100/ea.

I had a great winter season last year, even in the midst of our huge snowstorms and freezing weather.

My car on 15x8's is sporting 195/50 15's and the tires are slightly stretched-- not too stretched in my opinion but just help to round out the sidewall a bit