My understanding is that all F30's come with runflats as standard. However, you can spec option Z58 from the factory for 16-inch wheels and 16-inch wheels only. Z58 is a no-cost option and it means non-runflat tires (instead of the stock runflats). FWIW, I specifically requested non-runflat winter tires for my 320i xDrive.
Br,
Teme
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