You missed the part about the F1 test track? This obviate the need for deeper GPS depenendence. You have a 3D track designed with graduated radius turn trans

You missed the part about the F1 test track? This obviate the need for deeper GPS depenendence. You have a 3D track designed with graduated radius turn transitions, smooth topological surfac transitions, and predictable fiction levels. All in a general layout that is suited to safety at speed. Try running this car at 150mph on glendora mountain road, at night, during a bout of santa-ana cross winds.