The spare tire is secured with what looks like some pretty heavy-duty straps. The stuff on top of the cabinet seems to be held in place with a bungee cord. I wouldn’t trust that to hold in an accident.
I don't like to make plans. They cause the word "PREMEDITATED" to get used in court!
DON'T FEED THE VULTURES!
My Body is a Temple! Ancient, Crumbling, Probably Cursed . . .