xDrive

[DinanX5]

Hey everyone! Long time, no post....

So I was reading about the e70 X5 in last month's Roundel, and it described the functioning of the xDrive system exactly the same as it is in the face-lifted e53, and the X3.
I thought I'd read somewhere (on this forum, probably) that the e70 was going to get xDrive "II", where the electronic diffy could vary torque not just between the front and rear axles, but side to side as well (as opposed to calling upon ABS to limit wheel spin within a given Axle) I guess this new system didn't make it into the e70 (?)

Also, the article briefly mentioned the role DSC and DTC play in the functionality of xDrive... and how it's possible to disengage DSC (which we all know is done by pressing the DSC button on the center console) - which leaves xDrive operating with only the DTC. But apparently you can also disengage the DTC and let xDrive manage traction on its own.
I seem to remember reading (also, probably on this forum) that this can be done in the e53 too... something about holding down the button for 3 seconds maybe (?) Anybody know the details?