This is an injection-plastic military vehicle model kit.
From the Tamiya website:
This is a Gama Goat model, which depicts the ambulance version of that unique 6-wheel drive U.S. military vehicle. The Gama Goat was originally commissioned in 1966 as an off-road, amphibious vehicle, a 6-wheel drive truck consisting of a 4-wheel tractor and a 2-wheel carrier module. It employed an articulation joint between the two modules that allowed them to move independently of one another, allowing goat-like nimble traversing of rough terrain. The M792 ambulance truck variant featured additional seats that could be folded out to make a bed for the wounded, a heater to warm up the rear carrier module, and a canvas roof to protect its passengers from the elements. The M792 was deployed in the Invasion of Grenada which took place in 1983.
This model features an accurate reproduction of the ambulance form with canvas roofs, deployed carrier seat extensions and heater, plus moving articulation joint. It includes parts to build two figures, and decals for two marking options. Parts come molded in green.