[2] In 2003 the Argentine Army defined goals for increasing its capabilities, among them nationalizing the manufacturing of its equipment; the VC SK-105 "Patagón" tank upgrade project was part of that effort.

[3] It was planned to convert and upgrade up to 40 vehicles at an expected cost of USD 23,4 million in the period 2005-2009; these vehicles were going to be assembled in Comodoro Rivadavia and provided to the army units based in Patagonia.

[3][4] The vehicle is composed of a SK-105 Kürassier chassis which mounts a refurbished FL-12 oscillating turret armed with a 105 mm gun, obtained from obsolete AMX-13 tanks.

[2] The Patagón prototype was unveiled on 22 November 2005; however the project was cancelled in late 2008, as it was considered uneconomical.

[2] As of late 2014 four units have been completed, in addition to the prototype unveiled in 2005.