I am running 245/45 100W's on my allroad. General UHP tire... great tire for the price and they handle very well in wet or dry. Long life. I usually get 30K miles on the allroad.
For the RS6 I currently have 255/40 99Y Conti Extreme Contact... these are still on from previous owner as I have not given the RS6 much attention since I purchased her (allroad project is consuming all my time!). These tires have some serious soft sidewalls. I'd like to get some Michelin PSS on ASAP for a weekend road trip to the mountains next weekend. Thinking same size as my allroad.. 245/45 (100Y)
If anyone wants to purchase these Conti Extreme Contacts for your next set of winters let me know. I will need them down here on the coast. Tires are nearly new. I can take pics if you want.
Thoughts on size for the PSS's? I am on stock 18"s.