Vargas Models, a prolific maker of extraordinary resin, 3-D printed, limited-run armor models is back with another unusual subject; the Christie Model T3E2/E3 tank. The Christie had a "convertible" drive, meaning the tank had removable tracks for road travel, allowing for higher speeds and better range, and reducing wear on the fragile caterpillar track systems of the 1930s. At the time, it was the fastest tank in the world. There are no return rollers for the upper track run; the tracks are supported by the road wheels. As with many track designs with center guide teeth, dual wheels were used, allowing the guide teeth to run between them.
Even with such a revolutionary design, the Christie was ultimately rejected by the US Army, and instead sold to the Soviets, where it served as the prototype to the venerable T-34, the most produced tank in WWII.