I think an ideal venue for learning to drive fast would be a pancake-flat venue. (Okay, level, not flat per se, because it the Earth is round, flat and level are incompatible concepts.
But, anyway, a truly gigantic area, like paving a mildly-elevated portion of the Salt Flats that is off in a corner where no speed runs would be done, where you would just have optional track layouts delineated by tough LED lights embedded in a grid on the surface, and illuminated to give you the layout of any track on Earth that would fit in the paved area, or miniature versions thereof, if desired.
No expensive damage/penalty for going off-track. It is far easier to learn the limits of a vehicle when it isn't going to cost you anything to find them, just like racing drivers or fighter pilots.