The BA-10 was an armoured car design developed in the USSR in 1938 and produced till 1941. It was the most produced Soviet pre-1941 heavy armored car – 3311 were built ). The basic BA-10 design was developed from the BA-3 and BA-6 heavy armored cars. It had an improved GAZ-AAA chassis and improved armor (up to 15mm at front and turret). It was intended that the BA-10 would be replaced in 1941 by the BA-11 with a diesel engine and more sophisticated armor design, but the outbreak of war prevented BA-11 production. The BA-10 was in Red Army service until 1945.