The towing company / driver should have known better, but it is altimately the owner that should be looking out for his vehicle's well being. Sort of like you and your doctor, you have to participate in your health care.

I think it's standard procedure for all BMW vehicles to be towed only on a flatbed tow truck. All the owner's manuals, regardless of the type of drive system, have pictures of what right and wrong towing look like.

This should be a reminder for folks to read the owner's manual and get to know their equipment. I know I'll be reviewing the manual again to refresh my memory.

Thank you for sharing your story. Hope everything works out for you.