They consist of a common underframe, which is created by seam-welding a number of aluminium alloy extrusions, upon which bodyside panels are mounted followed by a single piece roof, again made from extruded sections.

Notable features shared are the aluminium alloy frame and two-stage Voith T211r hydrodynamic transmission system.

A cardan shaft links the output of the gearbox to ZF final drives (instead of Gmeinder in the Networkers) on the inner bogie of each vehicle.

The engine used is the more powerful and cleaner MTU 6H1800R83, the transmission is the mechanical 6-speed ZF Ecomat-Rail, and lighter Bombardier FLEXX-ECO bogies and hollow axles are used as well as half-height airdams.

However, there are issues with so-called "sandwich" formations, formed either as 170-15x-170 or 15x-170-15x, which causes problems with empty stock movements where up to four units of various types coupled together is common.