Looks more like click bait. BMW has probably applied for that patent but more of a design point of view. And even if that was was at some point used, how long do you think it takes tool manufacturers to make bits for that shape. Won't be a real problem but the author of course wants to lead that way.

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E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
E70 X5 40d -12 M-Sport Space grey