There is a portion of the article and video discussing the work they did after it was too much of a jerk in order to make it drive with sportsmanship. It's very

There is a portion of the article and video discussing the work they did after it was too much of a jerk in order to make it drive with sportsmanship. It's very high level so there are frustratingly few details. In the video the developers make it very clear that the goal is to make an agent that is a fun challenge.