This feels like "genius" advice I get at the Apple Store
lagunablue1 Great thread! I have only ever towed something once in my life (with my Armada) which has a rear air suspension (auto leveling).
For owners who do not have that option (or choose to remove it because it always fails and is overly complicated) they often get "coil helper bags" which are aftermarket air bags which fit in the coil spring and you manually inflate to get rid of the sag when towing.
Curious, would a setup like that work for the X3M to level it off?