some further progress on my KM 4000 CC

Most details of the cab had been applied - the exhaust stack's covers can positioned in open or closed position (I'd like to power them with a small motor...).
The small model next to my unit is Rivarossi's model from the 60's....

There has been some internal 'upgrade' regarding the motorization- now each truck is powered by a 350W, 36V-motor....eventually it was possible to put three car-batteries under the hood.
Next steps are application of chain-drives, building side-frames for the trucks and making missing handrails & ladders.