Everything I've seen from these guys seems top notch.
If it works the way they describe it, it's yet another shame mark on BMW engineering.
I still don't understand people with head in the sand and repeating: BMW designed it that way therefore it must be right.
And yes, BMW has some great engineering, but in the last 10-15 years not so much.

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2010 BMW M6 * Black Saphire Metallic * Full Black Merino Leather
2019 BMW X3 M40i * Alpine White * Mocha Leather