I've noticed that in Autopilot while driving on the highway in the cruising lane my Model 3 tends to hug the left side of the lane, even when a vehicle in the passing lane is hugging the right side of their lane. My ultrasonic sensors and cameras see the other vehicle, yet stay hugging the left side of my lane. You'd think Autopilot since it sees that other vehicle, it would move over in my lane, as to not be so close to that vehicle. Often times I have to disengage Autopilot because being that close to another vehicle makes me uneasy. I've probably sent Tesla 100 bug reports about this issue. Seems like this would be a priority and easy to fix.