it will be aftermarket hitch..

see the thread attached for pictures of factory (page 1) and aftermarket setup (on page 2)

http://www.xoutpost.com/bmw-sav-foru...tch-2011s.html

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2011 X5 3.5D - Platinum Gray / Black Leather / Dark Bamboo, Sports w/ 20's, Adaptive Drive, Comfort Seats, Cold Weather, Premium, Sound, Rear Climate, Technology, Comfort Access, Auto High Beams, Heated Rear Seats, Running Boards, Roof Rails w/Rola Crossbars, Space-saver Tire, Moonroof visor, P/Q Brake Pads, Cargo Mat, Weathertech All Weather Mats, Draw-Tite Hitch.

2010 X5 4.8i - Lemon'd 12/2010.
2006 X5 4.4i - Sold 11/2009.
2004 X5 4.4i - Stolen 8/2005. R.I.P.