I'd imagine this could work on a small fleet of miniature cars (rc size?). A model town/city could be built with various obstacles for training a large amount of the ai, I would think.
Wow, and the latency is manageable for the task?
Let's assume 50ms or 20 updates per second, and a car driving at 40m/s or about 145kmh / 90mph, the reaction time of the of the computer is after the car moved 2 meters (about 6.5 feet). A human would only react after about 8.5 meters (about 28 feet) - quite the difference.