VCA = Vehiculo de Combate de Artilleria = artillery combat vehicle. This self propelled gun is the most heavy AFV in service with the Army, it was developed from the Tam tank hull with a aditional roadwheel.
The turret was manufactured By OTO-Melara in Italy is 3 man crew. it have a laseric rangefinder and the locally built "Trueno" firing direction sistem.
The 155/L41 gun had a maximun range of 33 km with normal ammo, and 41 km with rocket assisted proyectiles (Base bleed)
The majority of the batteries equipped with this are deployed in the patagonian territory.
There is also a VCAMM ( Combat vehicle for ammunition transport) for resupply the 155mm shells in continues mode, but a few were made because the tracked M-548 was bought far more cheap than this "Made in Argentina" design... interesting vehicle anyway.
If it helps the Panhard armored car was the AML90. The French sold loads of these in the 1970's to various countries and often the license so they could be built overseas. I don't know if the Argentina bought the license but I know that South Africa did and suspect that Brazil also had the license.
Argentina tried to use about a dozen in the Falklands but they were poor at going cross country due to the high centre of gravity and poor ground pressure.
Yeah, I knows the name, mi doubt is about the MG , It is french made and originally caliber 7,5 x54 French, I hope that they were converted to 7,62mm Nato.