I am afraid that I did not document the building of this model. The winch was constructed of brass and aluminum stock (strip, tubing, angle etc.) which was soldered and/or bolted together with some gears taken from broken toys. The towing assembly was the most miserable to do as it required building the tiny universal joints so that it had complete range of movement.
I do not know how this vehicle was actually used but it did appear that it was, I assume for small sports-cars at the track.