Is "robotaxis" the word we're going with here? Because that sounds more like it ought to be the name for a subfield of robotics relating to optimizing the physical arrangement or orientation of robots...
https://en.wikipedia.org/wiki/Taxi#Etymology
https://en.wikipedia.org/wiki/Taxis
By contrast, "Thurn and Taxis" is apparently "from the Italian word for 'badger'" (!)
http://www.scudit.net/mdtasso.htm
>fu difficile stabilire il tasso da pagare; cioè il tasso del tasso del tasso del Tasso e il tasso del tasso del tasso barbasso del Tasso.
Well, OK, depending on the self-driving level...