Probably has a cutout in the tinting for the camera, which is mounted at the top of the windshield above the mirror. I would bet it's not the glass but the tint band that is the issue.

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2011 535i
Sophisto Grau / Oyster - Black Nappa, Anthracite Wood
ZAV, ZCV, ZCW, ZDA, ZDH, ZPP, ZP2, ZSP

Mods - M5 Grilles, BMWPedals Black Anodized

Heaven is where the police are British, the cooks are French, the cars are German, the lovers are Italian and it is all organised by the Swiss.

Hell is where the police are German, the cooks are English, the cars are French, the lovers are Swiss, and it is all organised by the Italians