If they are OEM BMW wheels they will be fine. Load capacity rarely gets tested in the snow and BMW wheels are rated to at least 150mph. 18" snows are a lot more expensive than smaller sizes though. If It were my car I would trade for some 16" wheels that are cheap and plentiful.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Last edited by Topless; 09-26-2014 at 06:39 AM.
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