Some people getting good economy here. I do a 400 mile trip every other weekend and motorway only at 75mph sees 42mpg. I have never seen it go higher than that..2005 330d auto.
Driven normally as I would a focus its low 30s. Out of interest I found the adjustment numbers for my fuel computer, I can make mine read whatever I like. It is amazing when it reads 50mpg even though I knew it wasnt real. Weird how our minds work. Its set for real numbers now as verified by brim to brim every now and again.
Wouldnt be difficult to crank it back up to make a sale though.