Will I have problems running the OEM run-flats (that come with the 18" wheels on a 335is) year around in the San Francisco Bay Area? With occasional trips to Monterey and the wine country? I read somewhere that high performance tires shouldn't be used when the temp drops below 40 degrees F. Thats pretty limiting.
RB, You will probably experience reduced traction from the OE RFTs when it gets close to freezing. The OE runflats are basically summer ultra high performance tires I believe, the compund is not designed for cold weather traction as far as I know.
