I have a virtually new set of BMW Style 254 18" wheels with Dunlop SP Winter Sport 3d Run Flat snow tires (245/50/18) with OEM TPMS sensors. Purchased from BMW dealer last year, have less than 1000 miles on them. Fits all 2009-12 7 series (long or X or sport) and the 550i GT. Not sure about other BMW models but has 5-120 bolt pattern.
Cost $3400 new; looking for $1800, plus shipping from Chicago. If you're local, I may deliver them to you depending on location.
Here is a picture of one - they are in storage at dealer and I won't have them for a couple of days.