For sale here is a genuine, lightly used Vorsteiner VR7 Aero carbon fiber rear deck lid spoiler. Made of real carbon fiber and handcrafted by Vorsteiner with seal of authenticity. It sells new for $1,000+ retail, and almost impossible to find used.
The wing was removed from a 2011 BMW 740i (F01), and will fit all 09-Up BMW 7-Series (F01 / F02). It's the same as on the Vorsteiner VR-7:
http://www.7post.com/forums/showthread.php?t=360234
Price: $550
Location: Santa Ana, CA
Contact: 714-724-0832 (call or text)