The top two pictures are different wheels than the bottom one. The bottom one shows 239s, which are 21 inches. The top ones look like the 20" M-sport wheels.

The price you quoted is closer to the 21" wheel option so it would help to know which ones you really have.

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2012 F10 550xi Carbon black/oyster
2011 E92 M3 SSII/black
2012 W166 ML63 Steel grey/porcelain
2007 E93 monaco blue/beige (retired)
2010 E70 35d Space grey/saddle brown (retired)