These days, mainstream car makers don’t have a habit of developing vehicles with tank-style caterpillar tracks on their rear axles.
In the early 1920s, however, there was a good argument for tracked vehicles, especially in less hospitable regions of the globe.
“A vast future lies before vehicles which are equipped with self-laying tracks,” proclaimed Autocar in a 1922 article.
“If we study the history of any new country, we usually find that the limiting factor in its evolution is the question of transport, and hitherto this has depended upon the development of railways or hard-made roads. There is an urgent need for vehicles which can operate freely over unmetalled paths or virgin land.
“The capability which these creeper track vehicles in general possess of covering soft ground is due to the fact that the load is distributed over the whole area of contact of the track with the ground, whereas with a wheeled vehicle the area of contact of the wheels with the ground is extremely small.”
There were some drawbacks to creeper tracks, Autocar noted: “One difficulty has been the absence of an efficient system of compensated springing to enable a perfect distribution of weight to be obtained in crossing rough or uneven ground.
"It is easy when passing over an undulation for half the weight of the machine to be borne on a very small area, the result being that the ground is flattened, or the machine is lifted bodily over the obstacle.