main focus of this year's show was the technological developments of safety vehicles and emission reduction, which were also the primary targets to be addressed. It was held from October 23 to November 5, 1972. The main focus of this year's show was the technological developments of safety vehicles and emission reduction, which were also the primary targets to be addressed. The auto industry's challenging positions were highlighted throughout the show. To support this, a "Safety and Pollution Prevention Corner" was set up in the 1st Hall, while large commercial vehicles were eliminated from the exhibits again. Carmakers presented the latest technologies of low-emission vehicles, including the oxide catalyst (the three way catalyst was not available at that time) and Honda's CVCC engine, as well as Thermal Reactor technology developed by Mazda and Daihatsu. Meanwhile, visitors paid great attention to motor sport oriented cars such as a racecar specification model of the Nissan Skyline and Mazda Savanna RX-3. A lunar surface vehicle, developed jointly by Isuzu and GM, was also one of the star attraction. Mazda Chantez EV concept Nissan Skyline GT-R (Second generation) Datsun Sunny RE Prototype Toyota RV-2 concept Toyota ESV-2 concept 1973 To commemorate the 20th anniversary, the organizer prepared special events for the Tokyo Motor Show this year. They were the "Development of Vehicles," an easy explanation display of how vehicles have progressed, and "Man and Automobiles," a review of the role of automobiles in society. It was held from October 30 to November 12, 1973. Daihatsu EV1 Toyota ESV concept Toyota Marinetta 10 trailer concept 1975 It was held from October 31 to November 10, 1975. The 21st Tokyo Motor Show, the first event after it changed to an every-other-year cycle, was held under the theme of "Life on Wheels" to present the auto industry's clear visions and attitude toward environmental issues. The Theme Pavilion put on various displays to show the broad connection of daily life and automobiles, as well as the auto industry's contribution (as an export business) to the Japanese economy. A very rare presentation was also seen to show the various relationships between life and vehicles in the earlier days through such old vehicles as the 1918 "Detroit" electric vehicle and the 1929 Sumida bus. On the other hand, carmakers displayed the latest developments in environmental technology in order to comply with emission regulations. Toyota displayed the TTC-c/TTC-V system, while Nissan