I've been hearing a random noise recently when the car sways side to side, such as when making a turn, sort of like a non metallic thud. It is coming from the rear, and it sounds like it is in the interior. I've been all over the interior, checking the seat locks, anything that can possibly move, and underneath the car, checking for anything that can make such a noise. I am starting to think it is some sort of body flex, I am considering taking it to the dealership, but I can imagine the song and dance I would get on this one. It is extremely annoying. If I should get extremely lucky, I will