LOL. So basically I was trying to diagnose a slight rattle from my rear and I decided to punch (or hit, whatever) the 2/3rd rear seat from the boot, not in anger or fustration, but rather to see if it rattles. Anyhow, I noticed that there's a rattle from under the car when hitting that seat... definitely from under as I had someone else punch my seat while I had my head stuck under. Punching any other part of my car including the 1/3rd rear seat and the 2/3rd seat when folded down and no 'noise' from beneath. So basically, I need some of you to go out and punch your car, see if you get this too???