In the 1981 vampire novel They Thirst by Robert R. McCammon, some characters use a military vehicle called a ‘Crab’ to get through drifting sand/dunes/whatever. As I recall, it was a very capable vehicle. At the time, the Air Force (at least – the novel took place in the L.A. area, and I’d just gotten a job at Edwards AFB) still used M151 jeeps. The HMMWV ‘Humvee’ was still two years away at the time of the novel’s publication. The Panhard CRAB didn’t come out until 2012.
In 1981, was there a prototype or planned vehicle called a ‘Crab’ in the U.S. military? Or was the jeep-replacement purely out of the author’s imagination?