These locomotives have a low level drive mechanism fitted to both cars. The motor is housed in the motor detailing and drives the inner bogie of each vehicle as in real life. There are fully functional BSI couplings on the outer ends.
There are a full array of lighting functions including interior, cab, directional with day and night modes, back-lit destination panels and door interlock lights. There are also switches fitted on underframe for non-DCC users to control the lighting functions.
Each car features full interior detail including etched luggage racks decorated in appropriate colour schemes for each livery/era.
There is an easy access DCC decoder fitting (Plux22) decoder socket located under a clip-fit panel on the underframe. Conductive close-coupling between cars means just one decoder is required.
There is a factory-fitted speaker ready to accept a sound decoder.
These locomotives are decked out in Great Western Railways / FirstGroup green livery.