In this video, you will meet the TET-100, a tractor of Soviet design that can transform into a different kind of tractor. Calum G. describes "one of the most unusual vehicles I have ever encounted," able to switch between wheels and tracks so that it would be both roadworthy and fieldworthy. Major props to the Soviet Tractor Research Institute.
"The Bizarre Soviet TET-1000 Transforming Tractor. A very short video on a very weird vehicle! Built in the 1980s, it was a strange vehicle with the ability to transform from a regular, road-going vehicle into an amazing caterpillar tractor."