The so-called Panhard AML 20, is a conversion of the AML 60 CS/AML 127, and like the AML 127 is unique to the Irish Army (though LIW continue their sales efforts). The turret and main armament is of South African design and is similar to that used on the Ratel 20.
The Irish Army decided to upgrade the original AML 60 CS armoured cars that were delivered in 1964.
The first upgrade consisted of the fitting of a Peugeot Diesel engine to replace the Panhard HD petrol engine, a direct fire weapon, a Browning 12.7 mm MG, to replace, the obsolete and dangerous 60 mm CS mortar, originally fitted to these armoured cars.
The second, and more successful part of the upgrade, consisted of redesigning the turret, fitting the aforementioned 20 mm cannon, and a Fire Control System, consisting of a laser range finder and targeting unit.