It’s worth mentioning that the Dodge Charger Hellcat is currently the fastest and most powerful production sedan in the world. If it wasn’t for the Hellcat being rated way over the “600+ horsepower” speculations then the CTS-V would have been the most powerful and fastest sedan in the world. In fact, I’m certain Cadillac was counting on the marketing. Sooo close! However you can expect the new Panamera Turbo S and next generation Aston Martin Rapide to attempt to takeaway that 204 mph top speed from the Hellcat. Of course an E60 M5 without the limiter will supposedly do 204 mph as well, so until someone hits 205 mph stock then we really don’t have anything new here.
Still, most powerful and fastest sedan in the world is a Dodge that can be found for under $70k in the right parts of the US (the Southwest, obviously).