17. Kaiser Jeep M715
This interesting vehicle is primarily a military truck, but they sold a few of them to civilian customers. They based it on the Jeep Gladiator pickup, introducing the Jeep M715 in the late ’60s for the U.S. Army. The engine was a dependable and strong six-cylinder pumping out just 130 HP.

But it had a lot of torque, which was necessary to move this three-ton truck. Also, they built the M715 to be easy to service and extremely durable, which it proved in the Vietnam War and several other conflicts. Kaiser Jeep produced over 30,000 of them up until 1969.