The Autoblindo 40, 41 and 43 (abbreviated AB 40, 41 and 43) were Italian armoured cars produced by Fiat-Ansaldo and which saw service mainly during World War II.

[4] In May 1939 the Fiat-SPA and Ansaldo-Fossati consortium unveiled its armoured car proposal, named Abm 1,[5] at the inauguration of the new Fiat Mirafiori plant near Turin; two prototypes had been built, one outfitted for military and one for police use.

[4] At the request of the Army the prototype had undergone numerous changes before it was adopted: redesigned front hull, recessed headlamps under armoured covers, improved ventilation, new cast spoked wheels, and flat, shortened mudguards.

[2] The spare wheels fitted to its sides were free to rotate, thus helping the vehicle over rough terrain and allowing it to drive over higher obstacles.

Overall the AB 40/41 family was well thought out, with a top speed of over 70 km/h (45 mph), good armour (15 mm on the front plates) and good road and cross-country performance, but there were some examples of poor detail design like difficult access to the powerplant, an unprotected fuel tank, one-man turret, exposed traverse gear and lack of an interior bulkhead separating the engine and crew compartments.

Each fully equipped independent armoured car company proved highly suitable for reconnaissance, escort and security duties.