Have had my 08 sts for several years now and have finally got the opportunity to really put the AWD feature to use. I live outside Nashville Tn and have been commuting 75 miles round trip in the ice and snow. Tonight on the way home I thought I was driving on hard packed ice but the car was so stable and controllable I had to stop, open the door and lean out and feel the road. Yes it was hard packed ice! Wow, couldn't believe how well the car drove. I had just a month ago put on a new set of tires. 235/50ZR-17 Hankook Ventus S1 noble2's. I had Continental extreme ds tires before, was happy with them but thought I would try the Hankooks. I am very happy with the performance of the car and the tires.