The AB 40 armoured car wound up being developed the Italian Royal Army to the belated 1930s, to alter the old Lancia models. The vehicle finished up being revolutionary in those days, being a four-wheel drive with split suspensions and two driving functions. The armoured car finished up being fitted with two 8mm device tools to the turret and another within the right back towards hull, but completed up being just integrated small figures for assessment purposes, as development of the more number of quantity of advanced AB 41 was already underway. Several of the models had been converted into tracked patrol cars although the tires might changed with train tires and general stopping systems. Several automobiles were current Yugoslavia by the Italian forces and, afterward, by the Germans.