1. Jeep CJ-6
When they presented the popular Jeep CJ-5, some customers complained about the lack of interior space since the CJ-5 was just a bit bigger than the classic military Jeep Willys. For those buyers, Jeep introduced the CJ-6 model in 1956. It was basically a CJ-5, but with a longer wheelbase and more space in the back.
Even though it was more practical, the CJ-6 wasn’t popular with most buyers. Interestingly, there was also a military version they called the M170. But the easiest way to recognize the CJ-6 is with its increased length over the standard CJ-5. Also, some versions had a spare tire they mounted on the rear fenders.