Easy, my POS 2013 650i GC is getting Drivetrain Malfunction error, and they never fix it. BMW NA is offering me $1000 to live with this problem and take it in whenever error goes off.
Check the thread below to see how many 6er owners are getting it, and google "drivetrain malfunction bmw" to see how many other people are getting it.
http://www.6post.com/forums/showthread.php?t=804821