Self driving is a lot more than just AI though. Our current AI gets really smart really quickly, but fails way too often to be used in critical roles like driving, which is why most of the code in these self driving cars isn't actually AI. They use it to predict the path of other cars, decipher data, and make high level decisions, but the actual control of the car (steering, brakes, etc) is all traditional programming. Waymo even talked about how they used to have more AI, and removed some in favor of traditional logic