There are vehicles you don't expect to see off-roading at Moab, and it's safe to say a 1958 Plymouth Savoy with dual-wheel rear axle and lifted suspension is on that list. If that's not enough, this video also extensively showcases a similarly rugged SN95-era, 1990s Ford Mustang.
Both of these rigs excel off-road. They're traveling with a Ford Bronco club. The Plymouth and Mustang don't seem to have any problem keeping up with the modern SUVs that have engineering for terrain exactly like this.