The Datsun Truck helped to provide logistic support for the post-war economic growth of Japan. The 320, released in August 1961, was noted for its Bluebird-like front mask and spacious interior. It featured a 1,200cc engine and independent (torsion bar) front-wheel suspension, improving performance and comfort. A long body was also introduced. Following a full change in May 1965, it became the 520.