A toaster on wheels to deliver groceries? Self-driving tech tests practical uses

Last Thursday morning in the desert town of Scottsdale, Ariz., a tiny robotic car turned onto a neighborhood street and pulled up to a home with a Spanish-tiled roof and synthetic grass in the front yard. Not even half the size of a Volkswagen Beetle, the toylike vehicle had no driver and no passengers.

https://www.nytimes.com/2018/12/18/technology/driverless-mini-car-deliver-groceries.html