Yes, 320km/h is a rare sight. Happens though, a Veyron once blew past me while i was going 180 in the center lane at night. It felt like I was standing still.
No, the 180-200 mph was an observation that I added. I've seen Mercedes AMGs, M3s, M5s, RS6 Avants, R8s, Porsche Turbos, Ferraris, Lamborghinis, motorcycles, and similar performance vehicles doing 180-200 mph on the Autobahn. In person and in videos posted to forums.
