Interesting that the OEM front wheel from a CSL is lighter than the narrower OEM CS front Wheel.Must be Magnesium after all

(Both the OEM wheels have the BMW stamp and BBS on the back.)
ONLY FRONT WHEELS WERE COMPARED
The results:
CSL Replica front (19" x 8.5"): 10.46Kg
OEM BMW CS front (19" x 8"): 10.43Kg
OEM BMW CSL front(19" x 8.5"): 10.29Kg