Comparing: T1E6 vs. T2 Light Tank vs. T7 Combat Car

Experimental vehicles T1E4 through T1E6 were heavily influenced by the British Vickers E. The first prototype was manufactured by the Cunningham corporation in 1931. After trials in 1932, an upgraded variant was built. However, a different experimental tank, the T2, was preferred.

The M2 prototype with Vickers suspension. After trials in 1934, the tank was sent for redesign, as the performance of the suspension was not sufficient. The tank never saw mass production.

Light wheeled caterpillar vehicle with machineguns, developed for the U.S. cavalry. The trials of the first prototype started in April 1937 and continued until 1939. However, the T7 was discontinued in favor of track-type vehicles.