Anyone else notice that Autopilot has significantly more trouble with tractor trailers than other vehicles? In the visualization tractor trailers jump all over the place. Normally this wouldn't matter too much, but I've found, on several occasions, when it is changing lanes and there is a tractor trailer 2 lanes over (in the direction of the lane change), Autopilot will jerk the car back into your original lane because it momentarily sees the truck in the lane you are moving into. Is there any word on the tractor trailer modelling improving?