Trucks Jeep is a universal vehicle capable of crossing rough terrain. The first jeep prototype was designed by the Army Ministry with the intention of transporting staff and supplies. Then, Ford and Willys-Overland produced two more prototype jeeps. In the end, Ford and Willy’s Overland produced the first mass-produced jeep. The origin of the word jeep is unclear, but people believe the word comes from obscure phonetic pronunciation “GP” or general purpose vehicles.