Compared to the armoured vehicles of the B-6 and B-10 series which had been designed on the basis of the GAZ-AAA truck, the armour of the BA-11 has been increased by 1.5-2 times and in some places, the BA-11 was slightly better armoured than the T-26 and BT-7 tanks. With the increased weight up to 8 tons, the vehicle maintained good driving characteristics: a speed of up to 64 km/h on the highway and 26 km/h over terrain. As well as in the BA-10 the designers also provided overall tracks which were able to help the armoured car to overcome particularly difficult areas. The gun and the turret of the vehicle also receives a 45 mm 20-K cannon from the BA-10 in the turret.