Taking delivery of my 528i M-Sport in the following week (with the 704 Suspension - according to the datacard). Had a chance to visit it before delivery at where it's currently being held awaiting registration...
Bear in mind that vehicle is sitting on the factory 18's... And before anyone starts, the "///M" designation come from factory (and, "Yes", they are also on the door sills.)
Hope these pics help (and one of the sport seats... just for good measure