The BA-20 (Russian: Broneavtomobil 20) was an armored car developed in the Soviet Union in 1934. It was intended to replace the FAI and its field trials were completed in 1935. The BA-20 was then used in the early stages of World War II.
The BA-20 armored car was developed in 1934 for use by HQ staffs, reconnaissance and communications units. It was derived from the civilian GAZ-M1 car using its chassis, which was itself a modified version of a Ford design, produced by the Nizhny Novgorod-based vehicle manufacturer GAZ. Full production of the BA-20 started in 1935. The chassis was built at the Nizhny Novgorod factory; the body was built at the Vyksinskiy plant, where final assembly of the BA-20 occurred as well.
The principal use of the BA-20 was as a scout vehicle. The BA-20's tires were designed to be resistant to bullets and shrapnel by the simple expedient of filling them with spongey rubber. A variant, the BA-20ZhD, could travel on railway lines by replacing the normal wheels with flanged metal rail-type wheels.
BA20 may refer to: