When we consider autonomous or even self-driving automobiles, we possibly think of a car or even semi that can drive on its own entirely without an individual. While this is actually autonomous, it does not inform the whole story. That "completely autonomous" situation represents a level 5 self-directed auto, amounts 0 via 5 work with the full sphere of driving, coming from fully individual, to 5, entirely computer system. https://tfl.gov.uk/corporate/publications-and-reports/connected-and-autonomous-vehicles