Almost 278,000 jeeps were produced by both Ford and Willys Overland as G.P. (general pur pose) vehicles (hence the nickname) for the American and Allied armies during World War II. Many, indeed, were the purposes to which this tough and tireless performer was assigned: scout car, infantry attack vehicle, amphibious vehicle, breakdown truck, etc. So much so that the word has passed into English as the synonym for a light, 4WD off-road vehicle.