Audi's new A8 shows how robocars can work with humans WIRED

In 2012 the engineers working on Google's self-driving car realized they had a problem. Early testers had agreed to always watch the road in case of emergencies, but many didn't--and it put them at serious risk. This is what's known as the handoff problem: how to alert and engage the distracted human when the computer falters. Bypass the issue by building a vehicle that operates entirely on its own.