Here are some images of Italeri's 1/35 scale Fiat Autoblinda AB 40 Ferroviaria. From Wikipedia "
The Autoblinda 40 (AB 40) was an Italian armored car built in small numbers in 1940. Armament consisted of two 8 mm machine guns in a turret. During production a need for heavier armament was envisioned and so the AB 40 was redesigned as the AB 41 which was the same vehicle except for a new turret with a 20 mm autocannon. Most of the 24 AB 40s that had been built were then converted to AB 41s.