2021 Charger RT
I have a 2021 RT and experience similar issues (1400 miles bought new). What I notice the most is under light acceleration the car seems to surge right around 1750RPM's and is fine past that point. Does it and any gear, and even in sport mode. It's way more noticable when the AC is on. I've also noticed a few times if I give it gas while moving it hangs for a second, accelerates slow then like you it just opens up and takes off. If you find out what the problem is please let us know. I also notice a slight tick that seems to be coming from below my vehicle when its warm.