[ceejayoz]

> An autopilot maintains heading, and that's all.

Aircraft autopilots can follow a flight plan, maintain an altitude or rate of climb/descent, do an instrument approach, and (using ADS-B) perform an automated avoidance maneuver when another aircraft is too close.

[mikeash]

Some of them can. Others are no more than a gyroscope linked to the rudder.

[ceejayoz]

Sure, but that's like pointing out that Toyota Corollas exist.

[mikeash]

In the context of a conversation where people say “car” implies something capable of 200MPH, that would be worth pointing out.

[annerajb]

I need to stop being poor and fly a citation. Closest I seen Garmin 430 do is flight path using waypoint.