I had to change a tire yesterday and noticed an empty form in the styrofoam on the right side. Looks like I might have lost something. What would go there? It’s a 2020 CX-5 Signature.
That's probably where the deck tie-down hooks used to go on older models. I believe Mazda stopped putting them in the boot after port delivery was completed because they didn't want them used as tow hooks due of liability issues.
That bolt shown in post #4 is what Mazda calls the "flat tire hold-down bolt" on vehicles equipped with a subwoofer in the spare tire. I guess because the flat tire/wheel would be wider than the spare tire, this longer bolt is necessary to secure the wheel/tire removed due to being flat.