The time from dropoff to port and shipment seems to have a lot of variability in it and how fast (or slow) it goes seems to depend on a little luck. It took almost three weeks from my dropoff on the 27th of September for my car to leave Bremerhaven on the 17th of October. However, I have seen guys comment on making it in less time. My car is finally in the States after six weeks from dropoff. My timing is probably going to be on the high side of BWM's shipping time estimate.
2013 335i - ED September 2012