Toyoda Gosei Co Ltd's personal mobility concept airbag car "Flesby" is displayed at the 44th Tokyo Motor Show in Tokyo, Japan, October 28, 2015. (Photo by Yuya Shino/Reuters)
The Toyota FCV Plus fuel cell concept car is displayed on media day at the Paris auto show, in Paris, France, September 29, 2016. (Photo by Benoit Tessier/Reuters)
Suzuki's Hanare concept car is displayed during the Tokyo Motor Show, in Tokyo, Japan on October 23, 2019. The 46th Tokyo Motor Show will be open to the general public from 25 October to 04 November 2019. (Photo by Soe Zeya Tun/Reuters)
The Mercedes-Benz F015 Luxury in Motion autonomous concept car is shown on stage during the 2015 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 5, 2015. (Photo by Steve Marcus/Reuters)
A three-seater Toyota Kikai concept car is displayed during the 2016 CES trade show in Las Vegas, Nevada January 8, 2016. (Photo by Steve Marcus/Reuters)
Travel concept: commercial airplane flying with beautiful charming stewardess on September 12, 2019. (Photo by Volodymyr Tverdokhlib/Alamy Stock Photo)
Casulo, a new concept for mobile living originated in June 2007 as a part of the dissertation of Marcel Krings and Sebastian Mühlhäuser at the Köln International School of Design in Cologne and is patent-protected (Gebrauchsmuster).
Front end detail of the Hyundai Santa Cruz crossover concept truck as it is displayed during the first press preview day of the North American International Auto Show in Detroit, Michigan January 12, 2015. (Photo by Rebecca Cook/Reuters)