Like most Z4 owners, I, when I want to jack the car up use a Jack pad on top of the saddle of the jack. Question is, is the weight of the car supposed to be on the base of the pad or on top of the rectangular section of the pad. I have a couple of Pads one has the car sitting firmly on the base using the rectangular section for location. The other where there is clearance between the car jack-point and the base of the pad so the car sits on top of the rectangular section . Whats correct or does it matter ?
