With its monococque aluminium body, the OmniCity does not have a conventional chassis. Instead, the chassis consists of two chassis modules for the 2-axle version and three main modules for an articulated bus.

OmniCity is equipped as standard with Scania’s 9-litre Euro 3-engine. The engine is mounted transversely at an angle of 60 degrees to give maximum passenger space. The engine is available in three versions, two diesel versions producing 230 and 260 hp and in a version running on ethanol which gives 230 hp.