So many benefits to a driverless car. Driverless cars waiting at traffic lights can communicate with each other and the lights so that they all set off as soon as the light turns green rather than having to wait for the car in front to get away. Cars on motorways can drive closer together all communicating with one another. Cars can drive with maximum fuel efficiency all the time. Cars can drive places overnight when the roads are less busy whilst their passengers sleep. Cars can drop you off then go and find a parking space which they looked up online. The car park can pack cars in because entry and exit times can be booked so cars can be placed into spaces according to when they need to leave or move themselves around in the car park as required, nobody needs to open doors so cars can be parked very close together. All this and the car can take you home from the pub. The potential of driverless cars is huge.