The AB-43 (Pz.Sp.Wg.AB 43 203(i)) is a German variant of the AB-41 with a more powerful engine and a modified turret..
Begleitzug Stab, Panzer Jäger Abt, 1057 B Gebirgsjäger division - Italy, late March 1945.

Artist's view!
Prototype version of the AB armored car series armed with an anti-tank variant of the standard 47 mm support gun.
The AB43 ‘Cannone’ prototype was only able to take part in trials before September 8, 1943, when the Cassibile Armistice was signed, effectively putting Italy out of the war. After the Armistice, German troops captured the prototype.