The GOAT is an amphibious multi - purpose vehicle designed specifically for the terrain of Vietnam. The Military vehicles being used in the 50s, provided by the US were reported to be inadequate for the terrain. So in 1959 the military looked for a design of a vehicle that would work. The pictures look like it is a vehicle with a trailer being pulled but it is a single chassis. six wheel vehicle. The military designation for this was, M561, being a 6x6 1 1/4 ton truck. It is equipped with a 2.6 L Detroit Diesel. It is an amphibious vehicle but it did not work very well. There were about 14,000 of this made with roughly 12,000 going to the Army and roughly 2000 going to the Marines. This particular vehicle was issued to the Marines even though it is painted with US Army. This has a clean title. Buyer has to arrange for shipment from Punta Gorda, Fl. GDI