I called the German Konfigurator hotline because it is too late to reach my dealer and the guy I spoke with had no clue. He recommended me to speak with my dealer next Monday.
Maybe Jason would be able to help here? Was there ever any mention of a purported incompatibility between 6WB and 609 in the official press releases or any other official documents?
I can't even think of a reason for this… In addition, the
official July 2013 price list has no indication whatsoever about any option limitations if you choose 6WB.