The 'icon of icons'. If you had to name only one American World War II icon, you'd be hard-pressed to find a more suitable candidate than the olive-paintj Willys Jeep. Widely recognised for its tactical and operational duties on the battlefield it was a key factor of the war effort. By the end of WWII, more than 360,000 were made and it had picked up the nickname 'Jeep' that quickly became the overall brand name.