The Ise Grand Shrine, dedicated to the sun goddess Amaterasu, is the holiest shrine of the Shinto religion. Every 20 years, craftsmen tear it down and build it new, all from wood, without a single nail. The same idea and construction techniques were applied in the Setsuna concept car, no fasteners were used in its wood construction.
The car is the brainchild of Toyota’s chief engineer Kenji Tsuji, and Kota Nezu of znug design. Toyota is Debuting the Setsuna Concept Car at Milan Design Week in April.
Source: Toyota Launches A Wooden Car – Forbes