Got mine yesterday as well. Interior fit and finish is flawless. No rattling sound so far. I noticed a few minor panel gap issues, but they all seem symmetrical and within specs. Could not inspect the paint very well as it was raining and cloudy. Damn June gloom in Southern California!
Man this is night and day compared to my 2018 M3LR. Tesla has come a long way regarding interior fit and finish. While it looks similar to my 4.5 year old M3, it feels much more solid and cozy. The ride is also much better and quieter than the 2018 M3LR, even with the huge 21" tires and lowered suspension of the MYP.