Ever seen one of these crazy-looking boxes on top of a car and wondered what it was? Most likely, it's a Tepui tent. So what is that, exactly? It's a tent that lives on top of your vehicle until you need it. When you do, it deploys quickly, is incredibly spacious and comfortable, and proves bombproof against the elements. My 6-year-old daughter and I used the Autana SKY three-person just before Thanksgiving this past year for a couple of days on the Colorado River. It was a hoot. The built-in mattress kept in the heat, and the spacious A-frame set up allowed us to play board games late into the night. The company offers tons of tent styles and options past the base model tents.