[ideasrule]

AI is still a long way off from being able to emulate the human brain, so I doubt that any autonomous program, even if run on the world's fastest supercomputer, could approach the skill of the worst driver.

<off-topic speculation>Soon after getting into AI, you'd have to get into how the human brain works, and what makes it sentient. It's possible that humans have only a very dim consciousness at birth that grows stronger as years' worth of experiences are built into the hardware of the brain. In that case, how would you give a robotic program those many years of training necessary for common-sense tasks that humans can easily do?</off-topic speculation>