If you have a look at the detail shots
here you'll spot other Chev bits such as master cylinder and gearbox. It really was quite an ingenious design.
Athough not CMP I can think of a few parallel examples such as the Strickland Bren-Tractor as well as others made from Jeep components. Wherever there were good supplies of relatively inexpensive new stock engineers put their minds to turning a profit from it.
What other fascinating things are out there around the world in this vein which were made in series production, not just one-off marvels?