Anyone else have a problem with something overhead "popping" when u enter or exit a driveway? (chassis flex)

No, but there is something in my dash that pops every time I hit a little bump for the first few miles until the car warms up.

Sunroof? I've also heard of the headliner popping out at one of the rear corners, as well as the rear window popping in extreme situations. Can't recall that user's S/N.

yea are you talkin about the sunroof?? cause i have the same problem and the middle part of mine is completley falling apart

My moonroof creaks, my rearview mirror rattles constantly, and one of my rear panels rattles while I drive.

I think if you were to lubicate the moonroof around the rubber edges, then it wouldn't creak, but I don't know with what.