The Jeep couldn't meet these demands ... Not to mention, it led to the rise of a four-wheeled civilian favorite as well, the Hummer, which first became available for sale to the public in 1992.

So, what happened? Hummer's story begins with the US military. The military used the Jeep as its go-to vehicle during the world wars and through the Vietnam War. But around the '80s, it started ...