That is quite spectacular, but perhaps not for the reasons the organizers intended. This is pretty much the minimal toy problem for self-driving, with a well-defined course with clear markings, with the only real difference being that the car in question is a full-size racing car instead of a toy car with an Arduino on top.

Of course, the physics of dealing with a real high-speed vehicle is substantially more complex (and more high consequence) compared with that of a toy car moving at a few centimeters a second, but it's not, to coin a phrase, rocket science; the physical principles are well-known, and automotive engineering is a whole industry in itself.

I'd be interested in knowing what actual physical testing was carried out before the race, and how much time the teams had to prepare.