Not sure if this was posted in this tread yet but the M4 CS failed to beat a M4 CP recently on same set of tires.
https://www.autoevolution.com/news/b...me-121168.html
If that's the case the M3 CS will be lacking the one thing that set the M4 CS apart which is the rear OLED lights.
This M3 CS better be at the most 3-5k difference on top of the CP simply for the carbon pieces and wheels/tires.
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Current Bimmer: '16 F80 M3, '20 F87 M2c
Gone but never forgotten: '13 FO e92 M3, Swifts, volks/advan, Akra Evo, Kics R40
Past: Alpine white e46 323i, Jet Black e39 530, Saph Black e60 530, Space Grey N54 e92 335, Mineral White N55 e92 335