C 734 is built on a common frame and body with the city bus models B 731 and B 741.

Forced ventilation from two heating system fans can not effectively exchange air.

C 734 (like other variants of the 700 series) had undergone many modifications during production, which should ensure better serviceability of these buses (especially newer, more powerful engines).

A number of Karosa C734 were converted into trolleybuses by the Pyongyang Trolley Bus Factory in the 90s with the conversion finishing in 1997.

[3] Since then, some vehicles have been converted into work cars by adding a platform on the roof.