I doubt you'll find any dealer willing to attempt this because there is no support from BMW on such a retrofit at this time so its a liability. It may seem like a simple task but there is more than meets the eye.
15' Msport X3 28i _Mperformance - ACschnitzer - H&R_
15' Sportline X1 28i _Mperformance - H&R - Recaro baby seat_
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