14. 1963-1987 Jeep Gladiator and J-series
With World War II far in the rearview mirror, Jeep needed a replacement for the Willy’s pickup truck. Enter the Gladiator. While Jeep’s early workhorses were rather compact, the Gladiator was a full-size and fully capable truck. The truly timeless design would go nearly unchanged for 24 years, undergoing only cosmetic refreshes and a few updates. In 1971, the Gladiator did get a new name, the “J-Series.” All good things come to an end and by the mid-1980s, the Gladiator was falling farther and farther behind the competition. As a result, it was discontinued.