For sale here is a Thule 3028 FIT KIT for BMW 3 series 4-door sedans 2006-2013. This lets you use Thule 460 podium feet with the fixed point roof rack attachments on 3 series BMW's.
FIT KIT ONLY, not the podium feet or bars.
Comes with all hardware.
Asking $50. They retail for $90 plus tax.
Pic from google: