(The first "auto-" is self-moving as contrasted with the cart that needed an external motive (horse etc.), then the second "auto-" is self-directing with sensors and feedback systems forming a crude "mind" with a "self image" (all efficient regulators contain a model of themselves[1]). A self-motile and self-guided machine is an auto-auto-mobile. I love it.)
(The first "auto-" is self-moving as contrasted with the cart that needed an external motive (horse etc.), then the second "auto-" is self-directing with sensors and feedback systems forming a crude "mind" with a "self image" (all efficient regulators contain a model of themselves[1]). A self-motile and self-guided machine is an auto-auto-mobile. I love it.)
[1] https://en.wikipedia.org/wiki/Good_Regulator