I am thinking of mounting the snow tires on my stock 15" rims (they are just sitting in my storage) and i think their dimensions are 205 60 15.. So what dimensions of snow tires should i get?

And I'm deciding between the Dunlop Graspic, Michelin artic alpin.. Any opinion?

I had two successive A4s, ran the above size snow tires on both. They work great. Better, actually, than the 205/55-16 snow tires I now run on my new S4. There lots in the archives about tire sizes, and why narrower and taller is better for snow tires.

If you check the tire inflation info inside your gas cap door, you'll see an inflation listed for the above sized tire.

As to which tire to buy, they're all pretty good. Availability may be your deciding issue. It's pretty late in the season to be buying snow tires, and lots of sizes are gone. S4 owners are having a lot of trouble right now finding tires to fit. I'm trying not to feel too smug about buying mine in October...

DMoore
'00 S4