Back from Sydney and the BMW OBC over reads unnecessarily in my opinion just as JDD stated.
What was BMW trying to achieve by deluding its customers?


Economy data - Fully loaded.

OBC 7.4L/100km, Actual 8.2L/100km to Sydney.
On the way back I worked the engine hard up every hill on the highway and cleaned out the DPF to the stage where you could not see any smoke in the mirrors. It would have still been smoking but not as much. Several times we topped 180 before lifting off for the crest to resume our set speed of 115 (speedo) or 110 by the OBC.
Economy data OBC 7.6L/100km, Actual 8.4L/100km to Melbourne.
Range showed 130km remaining at Sydney end of the 940km trip

No Complaints apart from the NSW roadworks everytime I drive up the Hume.
Cheers, Dan