I think I have noticed the same, but I thought I was going insane so decided not to share :D

It seems that only eco disengages the transmission so I use it when I get off the mountains or situation where you can see similar conditions.

That being said , I drove 1400 km(~870 miles) in ECO Pro, mostly highways at about 140 km/h and the “additional distance” I gained was about 6 kms(4 miles?).

The way back, I did the same in Comfort and there seemed to be no difference whatsoever.

Talking about G31 540i xDrive

It is a well-known fact that european men have bigger dicks, hence nobody is driving any of the V8 5.8L trucks or whatever.

Same goes for BMWs, to each their own