I finally got a run in with something quick. Couple days ago I was cruising down the freeway when a black C6Z flew by me. He seemed to be on a mission so I figured I'd help him get there quicker. A few miles down the road it cleared up, I got along side him and I dropped into gear. He down shifted and immediately punched it, I followed suit and started pulling. I pulled about a car then I think he shut down once he realized he wasn't going to catch me because he just fell back suddenly. Tried to get a second run for confirmation but he wouldn't go again. I honestly thought it was gonna be closer tho. It had an aftermarket exhaust but that's all I could tell. Figured I'd share.