I test drove a fully loaded 4.8i and it had this option. The salesperson turned it on but I could barely feel it. It would make the left half of the seat cushion really hard and raised, then the right etc. It felt like I was sitting lopsided and was wondering if there was something wrong with the seat, but then realized what it was. Pretty lame option in my opinion.
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2022 X5M Comp Dravit Grey/Full Silverstone
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2018 M5 Black/Full Silverstone
2015 X5M Donington Grey/Full Silverstone
2010 X5M Space Grey/Full Silverstone
2003 4.6is Silver/Black
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