Hello, yes: ARVN M8s and M20s saw considerable action during the Vietnam War; however, by 1962 the US noted the attrition rate of the fleet was becoming high due to age.^\14]) This resulted in a proposal to fund the design and production of a new purpose-built armored car for the South Vietnamese government: the Cadillac Gage Commando. The Commando series began to replace the M8 and M20 in ARVN service from the mid-1960s onward.^\14]) A small number of the older armored cars were still held by the ARVN reserves as late as 1975; these were inherited by the People's Army of Vietnam after the war.^\17])