FYI, TireRack has updated their 2020 M340i info to include wheel & tire packages, including winter. Their system says various 18's and 19's will fit. But it does NOT currently question whether "sport brakes" are installed, as I've observed on some other BMW models in their system. I wonder if they know about ZTK and whether it matters for 18's?
Last edited by Delta5; 08-13-2019 at 08:27 AM..
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