#FF00AA

In the early versions they tested on closed courses, the vehicles were programmed to be highly aggressive. Apparently during these aggression tests, which involved obstacles courses full of traffic cones and inflatable crash-test objects, there were a lot of screeching brakes and roaring engines and terrified interns. Although impractical on the open road, part of me wishes I could have experienced that version as well.

Also, nice:

At one point during the trip, we were attempting to make a right turn onto a busy road. Everyone’s attention was directed to the left, waiting for an opening. When the road cleared and it was safe to turn right, the car didn’t budge. I thought this was a bug at first, but when I looked to my right there was a pedestrian standing very close to the curb, giving the awkward body language that he was planning on jaywalking. This was a very human interaction: the car was waiting for a further visual cue from the pedestrian to either stop or go, and the pedestrian waiting for a cue from the car. When the pedestrian didn’t move, the self-driving car gracefully took the lead, merged, and entered the roadway.