Its principal competitors are the Isuzu Erga, the Nissan Diesel Space Runner RA and the Hino Blue Ribbon.

Mitsubishi Japan Heavy Industries (at that time) was the first route car to adopt a frameless monocoque structure, and was announced in 1959.

It was a unique vehicle for a route bus vehicle with a total length of 12 m and two front wheels, but due to the road conditions at that time, there were few situations where long cars could be fully utilized, and because it was too large, there were restrictions on the running road, so JNR Bus, Nagoya railways, Asahikawa Bus (merged with Asahikawa Electric Railway)[1] were only 14 sales results to the three companies, 11 Fuji Heavy Industries bodies and 3 Kure bodies.

The Eco Hybrid (diesel-electric bus) is now setting new standards in practical trials in Japan.

[5] Series hybrids are efficient on vehicles like urban buses with low shares of constant or high speed within their driving profile.