Well I had been dreading installation of my winter tires and wheels out of fear that my non-vibrating A5 would turn into a vibrating demon. I've got about 300 miles on them so far and no vibration. The winter tires are Dunlop Winter Sport 3D's and the tire/wheel package was purchased from TireRack.com. They roadforce balance so maybe that's why I don't have any vibration with the new tires & wheels. I had the Winter Sport M3's on my A4 and loved them so I'm hoping the 3D's are as good or better.