Another challenge faced by autonomous cars is how to navigate different countries and around humans using different forms of etiquette.
Callegari explained how self-driving cars will need to be taught how human driving and behaviours differ by country, and adapt accordingly.
“Blatting down the Autobahn at 250km/h (155mph) is quite common in Germany, then you’ll get chased down by a Mercedes or a Porsche. Then in Italy you’ll have someone in a Punto doing the same thing, but the driving conditions and the expectations there are quite different.”