Proof I was there.
If you've been to Zuffenhausen before, you know that little traffic circle between the Porsche Zentrum, Museum and factory buildings. It was crazy that they now have traffic lights inside the circle. Don't both defeat each other's purpose? Traffic around there was awful and people blew through the green lights because they lasted less than five seconds. Every car took off so fast and then slammed on their brakes for the next red light a few feet away. Yellow lights and newly red ones got ignored, which is rare in Germany.