The U-2 spy plane is really hard to fly and land. As part of the standard landing procedure, a backup pilot, driving a sports car, races along the runway behind the descending aircraft and radios altitude information to the active pilot. They started out using El Caminos, switched to Mustangs, and now use Camaros or GTOs.
I used to know an Army captain who would occasionally discuss the nature of prestigious parts of the military. He said, "If someone in special forces said they needed 100 ATVs, they would get 100 ATVs, no questions asked."
The wacky requirements of U-2 landings reminds me of that.