The noise sounds just like the front of a car scraping against the apron of a driveway -- except it comes from the rear of the car when I go over bumps at slower speeds(e.g. backing out of a driveway, going over a speed bump or a small pothole in a parking lot). It also like it's coming from down low, below the hatchback area, as if it were coming from a wheel well. My guess is that it might be related to my rear shocks/struts? Any help would be greatly appreciated, thanks!