M3A1 STUART
At its basis, the light tank had a 37 mm cannon with a similar layout as the M2 light tank, with the radial engine at the rear and the transmission on the front, though the radial engine was in high demand so the Guiberson diesel T-1210 were fitted in some models to substitute the engine.
...It had five machine gun armaments scattered around like the M2 but featured better armour and a better cannon with the 37 mm M6 cannon. ... All in all, the M3 light tank design and its variants were produced in massive quantities from March 1941 to October 1943 with a total of 25,000 units produced.