Created by Felix Ros, Stewart is a hypothetical tactile interface designed for a fully autonomous car. Working around the idea that even thought self-driving offer obvious benefits, they also eliminate a sense of freedom, expression, and control while driving. Stewart’s objective is to accommodate a healthy relation between man and machine.
So why would you want to control a car that drives itself? Learning to trust a (new) technology takes time. Humans are very unpredictable creatures that tend to change their minds frequently. For example: while driving you want to make a detour or you may need a coffee break. These changes of plan can easily be communicated to the car trough Stewart.