In a trial in Berlin, Audi successfully piloted a system that connects by wireless to the central computer controlling traffic in the city.
By means of a SIM internet connection, the central data on red light timings, interlinked with the car's GPS navigation system, shows in a graphic on the dashboard what speed a driver should maintain in order to get to the next traffic lights when they are changed to green.
Audi hopes to incorporate the technology in upcoming cars, and there's been strong interest from cities in the US and Australia, among other countries.
