Exotic Street Race Interrupted By Driver Noone Expects

A 350Z Procharger driver decided to challenge a Porsche 991 GT3 on the Autobahn in Germany. The Procharger moves to the left lane speeding up past the Porsche. What other way would they get this Porsche's attention?

He isn't going to let the Procharger speed up without making a statement himself. As soon as the Porsche speeds up and moves ahead of him, something unexpected happens.