Yeah, retrofuturistic airflow design... That should be mixed up with rough simplicity of a cheap, massproduced military vehicle.
How would that look? The Dodge isn't that bad, but...
When i look on the front of a Hummer, i see a lot of straight edges, easy to manufacture and replace. Headlights, hidden in the middle, so they wouldn't broken by stuck-out branches and sharp terrain edges. The front axis is planted to the very front, so the car body edges won't bury themselves in the mud. And also a very high ground clearance.
Now, all these technical aspects should be considered by a designer from the 50's, who's into airflow, tailfins, massive roadcruiser aesthetics and heavy atomic drives.