Originally Posted by Mystic_blue
My dealer strongly advised me against "any non-BMW" suspension....which was expected...but then insisted that since I had the sport package it meant that my XI had stiffer suspension....to which I said I thought that the XI had no suspension mods in sport package....oh well. I will mess with different tires asap. non rft....and pick up a spare while I am at it.
I dont think that is correct. The XI Sport suspension is the same as the XI non sport. Seats, oil cooler and breaks make comprise the Sport version.