FILE PHOTO: Pop.Up, a modular ground and air passenger concept vehicle system, is presented by Italdesign and Airbus during the the 87th International Motor Show at Palexpo in Geneva, Switzerland March 8, 2017. REUTERS/Arnd Wiegmann/File Photo
FILE PHOTO: Pop.Up, a modular ground and air passenger concept vehicle system, is presented by Italdesign and Airbus during the the 87th International Motor Show at Palexpo in Geneva, Switzerland March 8, 2017. REUTERS/Arnd Wiegmann/File Photo