The original Jeep was produced by Willys Overland for the US army during WWII. Its light weight along with durability and four wheel drive allowed it to be used for some impressive off road situations.
There is nothing that can top the experiences one can have in the ol Intl Scout trucks and Travelalls. I grew up going camping and on muddy trails with 8-10" of sludge coming up to the door level. Never once did we get stuck in our 79 Intl Scout 2 SUV, plus if its sunny the hardtop is removeable.