Google has confirmed a select few of its prototype self-driving vehicles will leave the test track and hit the roads of California. Safety drivers will be on board despite Google running rigourous tests at its proving ground with each prototype’s speed capped at a neighbourhood-friendly 25mph. The next step aims to see how the community perceives and interacts with the vehicles, as well as testing how the self-driving car deals with unforeseen circumstances such as where to stop if there is a problem with its exact destination.