I can attest to no rubbing as well, and that is under hard driving/track usage.
There is no better wheel for the M5 than the BBS FI. Absolutely perfect:
http://f10.m5post.com/forums/showthread.php?t=898878
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Current: '16 GT4
Past ///Ms:
'13 F10 M5, Alpine Weiss III/Sakhir Orange Full
'10 E60 M5, Space Gray/Black