mhermher's examples are 1) proven impossible, and 2) impossible until we get a completely different theory of physics, respectively. "Until they aren't" makes a nice glib dismissal, but is fails to address the actual impossibility that mhermher has pointed out.
Now, neither of those examples is actually relevant to the topic at hand, namely, AIs driving cars. The question then is, what category are AI's driving cars in: The go-and-chess category, or the logically-or-physically-impossible category, or something in between? My guess is "something in between". But "until they aren't", while it may apply to that category, may still be "longer than your lifetime".
Now, neither of those examples is actually relevant to the topic at hand, namely, AIs driving cars. The question then is, what category are AI's driving cars in: The go-and-chess category, or the logically-or-physically-impossible category, or something in between? My guess is "something in between". But "until they aren't", while it may apply to that category, may still be "longer than your lifetime".