Audi is introducing the vehicle-to-infrastructure (V2I) service "Traffic Light Information" to Europe. Then cars will be more likely to catch a "green wave" in the city: Audi drivers will see in the cockpit what speed is required to reach the next traffic light on green. If that is not possible within the permitted speed limit, there will be a countdown to the next green phase. Driving in cities will thus become more relaxed and efficient.