While waiting at a light today a see a charcoal gray zr1 pull out in front of me from a side road, I pulled up next to him we exchanged nice words(nice car ect.). We both were going the same way getting on the highway. He took off I went after him in the left lane , he moved over I pulled up along side and off we went form about 50 to 100mph. We both just looked over and hit it, I pulled ahead and was about a car length ahead at about 100 and that was it . We gave each other thumbs up and he took the next exit. It was an older guy driving and I'm guessing it was stock. Still had a fun time