Originally Posted by MikeS '06 330i
I just put on the new Bridgestone RE960AS run flats, generation III. I love them! The ride is great. Give them a try before you convert to standard.
If you go this way, make sure you don't get old gen1 re960. They were an embarrassment to themselves, and at this point would have been stored on shelf for much too long.
Also if you care about snow, smaller tires give better grip on snow, so a square 225 or 215 setup (if your wheels allow) is not a bad idea. A set a 17 inch cheap winter wheels is also a possibility.