The front part is almost identical to that of Škoda 706 RTO buses, also based on the rear of this type, but has been modified.

In 1960, a single prototype (the first Czechoslovak articulated bus) was made, but mass production never started.

In trial runs with passengers, the prototype proved successful; the only complaints from drivers concerned a weak engine that had problems when the bus was fully occupied.

In 1966, the bus was apparently handed over to the enterprise Chirana Brno, which scrapped it in 1969.

After the failure of the production of articulated RTO buses in Czechoslovakia, serial production began in large numbers under a license in Poland (like standard buses Škoda 706 RTO).