Here's my modification of 42008 Service Truck set, fully motorized and remote controlled. I decided to keep the original functions (including pneumatics) exactly as they are while adding some extra features as well.
The additional functions are driving, tilting of the driver's cabin, headlights, steering and working-tilting steering wheel. I tried my best to keep the original looks (with some visual improvements though) and made the structure as rigid as possible. The PF elements used are: - 1 L-motor for 8x4 driving (with single, shared differential) - 1 M-motor for steering - 1 M-motor for tilting the cabin - 1 M-motor for functions (included in the original set) - 4 M-motors for switches - 2 for pneumatic switches and 2 for mechanical switches - 4 IR receivers - 1 Rechargeable battery box - 1 Led light set, - 2 x 20 cm extension cables, one for the large motor and one for the battery box.