Dear Forumers and tech experts,I picked up my 325 sports about 2 weeks ago from AB, and after a few days of driving , a lot of rattling and vibrations are coming from all 4 door panels, including the panel behind the headrest of the rear passengers. This is especially evident when turning into upper or lower ground areas, seems like when the chasis is twisted, the sounds are loudest. IS this normal on the 325? as I am assuming the chasis on this sport model could be stiffer, thus causing the rattling. what can be done about it? Please advise, thanks in advance