Through the grapevine

摘要

The road ahead seems clear, but the prototype Willwarn system in the Mercedes lets out a soft warning ping. "A lot of cars have been braking harshly up ahead," explains the driver. As we approach, he also applies the brakes sharply and on-screen the system performs a rapid update. It is adding his reaction to its database. When we pass the next car our information is transferred across, so it will also know to warn its driver that something in the road is causing others to brake sharply.