Here's what I see with 10.6.1. The car handles well with one lane roundabout but NOT double lanes. As soon as it enters a roundabout, it speeds up and change to a right lane. But then the right lane merge with left lane to exit. The car is so confusing! Don't know why it can't stay in its lane. Thought you are not allowed to change lane in a midle of roundabout (solid white line, not dash line)! Other than that, 10.6.1 also handles well at a intersection with flashing red and yellow light. In a neighborhood, car can see other cars parked on the street well. It uses high beams alot. Very sure other drivers are mad!