Development of the 101FC started in 1967, with a design team led by Norman Busby (14 October 1931 – 30 June 2005). Production took place between 1972 and 1978. In common practice of the armed forces, many vehicles were not used for some years and it is not unheard of for military vehicle enthusiasts to pick up these vehicles after only a few thousand miles service. All the vehicles produced at the Land Rover factory at Lode Lane, Solihull were soft top ("rag top") General Service (GS) gun tractors, although later on many were rebuilt with hard-top ambulance bodies and as radio communication trucks. A rare variant is the electronic warfare Vampire body. It is thought that only 21 of these were produced and less than half of these survive today. One was destroyed in the Buncefield Oil Terminal Fire.