Among the advantages of the model 321 - compact and ergonomic, maneuverability, high performance. It is also distinguished by such design features as a transistor traction drive, which saves up to 44% of electricity consumption (including recovery) compared to the rheostat-contactor control system; providing access for passengers with limited mobility and wheelchair users; installation of electrical equipment on the roof in sealed compartments, which eliminates the impact and accumulation of precipitation affecting electrical safety and reliability.
In addition, trolleybuses will be equipped with air conditioning in the driver's cabin, passenger information system, as well as video surveillance system.
Funding for supplies is carried out with the support of LLC "Promagroleasing-Center".