I just noticed that there are two bolts in the rear wheel well. One of the two bolts are severely rusted. It's the exact same on the other side too! You'll see one shiny bolt right next to the rusty one. It's like they did it for a reason. I'm a bit disappointed. This car hasn't experienced any snow or salt and it's a couple of months old. One would expect car manufacturers to be using better screws by now. How are your cx-9s looking?? Maybe my car has some defective bolts that weren't treated..