FYI, the rust in F30 seats problem has gone global, with one South Korean owner destroying his F30 in protest...
http://www.f30post.com/forums/showthread.php?t=777392
The
"Rust in Seat Base ?" thread by
therudies86 which was originally posted in the Australian forum has also gone global, and has moved to the General forum (I assume for greater exposure)...
http://www.f30post.com/forums/showthread.php?t=726583
As a result of the exposure, some owners in the US are reporting similar rust problems in their new F30s. Refer to the above threads for more info.
EDIT: For completeness, I added the poll from Post #17 into this post:
[Poll] Do you have rusty seat frame bases?
http://www.f30post.com/forums/showthread.php?t=781312