If ALICE is not even a teen-ager, how do you expect a robot to drive 150 miles alone in the desert?

According to slashdot, ALICE Wins Loebner Prize 2004. It actually won the Bronze medal only. If Artificial Intelligence is at this stage of the game, how come people expect to win the DARPA Grand Challenge race ? Maybe it's because they don't think it is Artificial Intelligence in the first place ?