I recreated set 40586 (Moving Truck GWP) in blue, and changed the wheels, rear-view mirrors, front bumper, and a few other things.
You may be asking why I chose blue for the truck. The answer is simple: I had two blue wheel arches lying around unused, and this neatly solves that!
The rear of the truck.
The roof comes off and the ramp slides out. Also in this picture you can see the cabin door opens. The roof of the cab section also comes off to seat a driver at the wheel.
Thoughts?