While most of us fly economy, crammed into planes like a flying tin can, some people skip business class altogether and head straight for their own private jets. These luxury flyers never have to worry about getting stuck in the middle seat. With this concept design from Mercedes, the choice is between a sleek armchair and a cushy sofa. This concept design is from Mercedes' parent company, Daimler. In a unique partnership between Mercedes-Benz Style and Lufthansa Technik, the concept jet interior does away with walls and rooms. A "dynamic, spiral layout" creates the illusion of more space, while a shift in color scheme is used to indicate separate areas.