I know a spy photo is just that "a spy photo" the actuall details of the final car (mirrors, grill, lights etc. is hidden under-need) so we all have to wait for the final un-wealing of the final product.
I was hopping, however, something would be done with the rear bumper to hide the muffler. Being exposed like that is one thing I don't like about the e9x ///m3 and seeing nothing has changed in the new generation ///M3 / ///M4 is somewhat disappointing. Perhaps I worry too earley might it be deliberate the rear bumper and might it change on the final production ///M3 / ///M 4 ... let us wait and see