The High Mobility Multipurpose Wheeled Vehicle project, better known today as the Humvee, can be traced back to a US Department of Defense request for bids to build a new military truck. According to McElroy, he was invited to the Chrysler proving grounds in 1981 to check out the bid from the brand's defense division. The company's concept was that it might be able to build an inexpensive, capable vehicle by using off-the-shelf parts.
The angular body panels gave the truck a look almost like a modern, stealth vehicle. However, the flat look was actually just to make the tooling as cheap as possible to produce. Still, this Chrysler looked surprisingly futuristic for the early '80s. It's actually not too far away from the famous Lamborghini LM002, itself intended as a possible military-spec machine.
Obviously, Chrysler's proposal never made it to production, but it's interesting to think that if history had gone differently, this could have been America's military vehicle rather than the Hummer. Fast-forward to the 3:35-mark in the video to get the full scoop on this forgotten piece of automotive history.