October 17, 2007 Toyota has revealed a raft of new concept vehicles based around cutting-edge sustainability technology that the company will showcase at the upcoming Tokyo Motor Show. Among them is the 1/X (pronounced "one-Xth"), a light-weight (420kg) hybrid vehicle pitched as “redefining what it means to be environmentally considerate”. The 1/X matches the interior space of the Prius, but is only one-third the weight and aims to double its fuel efficiency. Gizmag will be on the ground to bring you the latest from the Show when it gets underway on October 26th. In the meantime visit our highlights page for more previews of what’s in store.