The MBV-2 was the heaviest WW2 self-propelled armoured carriage. Two were made by the Kirov Factory in 1938, armed each with six machine guns and three T-28 tank turrets.
For power they had two Fiat 355C diesel engines which developed 115 HP each, mounted on the two bogies (2 axles each) forward and aft, under a large bonnet with louvres.