I have a set of the OEM winter mats. The fronts were used one year and the backs are still in original packaging. Bought from Calgary BMW last winter.
Price is $45 or trade for something automotive (cleaning supplies, wax etc). Also have a streetbike that needs winterizing so completely open to trades for that.
I'm not posting pictures because they are in storage at my rental property but if you really need them I will head over and snap some.
If you come pick them up I will throw in a litre of Castrol M3-specific motor oil for your trouble.