The CJ-4 exists only as a 1951 prototype, and is the "missing link" between the flat-fendered CJ-2A and CJ-3B and the round-fendered CJ-5 first introduced in 1955.
O CJ-4 existe só como un prototipo de 1951, e é o enlace "perdido" entre a defensa plana do CJ-2A e CJ-3B e a primeiradefensa redonda do CJ-5 de 1955.