[ovekvam]

Actually there is a sixth option as well. The performance brake kit has a 370 mm front disc that I have no data about. Not even the part number.

Edit: I found it.

6) Part number 34106797603. Weight 11.88 kg. Size 370x30 mm.
Used in:
F20 114d 5 doors, N47N, Europe (1T91) : M Performance front brake - replacement
F20 114d 5 doors, N47N, Europe, RHD (1T92) : M Performance front brake - replacement
F20 114i 5 doors, N13, Europe (1R11) : M Performance front brake - replacement
F20 114i 5 doors, N13, Europe, RHD (1R12) : M Performance front brake - replacement
F20 116d 5 doors, N47N, Europe (1C71) : M Performance front brake - replacement
F20 116d 5 doors, N47N, Europe, RHD (1C72) : M Performance front brake - replacement
F20 116i 5 doors, N13, Europe (1A11) : M Performance front brake - replacement
F20 116i 5 doors, N13, Europe, RHD (1A12) : M Performance front brake - replacement
F20 118d 5 doors, N47N, Europe (1C11) : M Performance front brake - replacement
F20 118d 5 doors, N47N, Europe, RHD (1C12) : M Performance front brake - replacement
F20 118dX 5 doors, N47N, Europe (1T51) : M Performance front brake - replacement
F20 118i 5 doors, N13, Europe (1A31) : M Performance front brake - replacement
F20 118i 5 doors, N13, Europe, RHD (1A32) : M Performance front brake - replacement
F20 120d 5 doors, N47N, Europe (1C31) : M Performance front brake - replacement
F20 120d 5 doors, N47N, Europe, RHD (1C32) : M Performance front brake - replacement
F20 120dX 5 doors, N47N, Europe (1B51) : M Performance front brake - replacement
F20 120dX 5 doors, N47N, Europe, RHD (1T72) : M Performance front brake - replacement
F20 125d 5 doors, N47S1, Europe (1C51) : M Performance front brake - replacement
F20 125d 5 doors, N47S1, Europe, RHD (1C52) : M Performance front brake - replacement
F20 125i 5 doors, N20, Europe (1A51) : M Performance front brake - replacement
F20 125i 5 doors, N20, Europe, RHD (1A52) : M Performance front brake - replacement
F20 M135i 5 doors, N55, Europe (1B71) : M Performance front brake - replacement
F20 M135i 5 doors, N55, Europe, RHD (1B72) : M Performance front brake - replacement
F20 M135iX 5 doors, N55, Europe (1B91) : M Performance front brake - replacement