They do make the M wheel in black stitching....I'll be damned if I can find the part number, but it is available as its on my car
Chris
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'22 M5CS, '06 Z4M, '01 X5 4.4i, '00 M5, '05 Acura RL, '12 X6 3.5, '01 740, 08 335xi, '17 540xi (yes they all are still with me)