I wonder if any of these vehicles have USS and/or the 5MP Cameras.
Using the VIN Decoder here: Tesla VIN decoder. my RWD 8th digit is an 'S' indicating the newer 3D7 motor. Looking at a VIN from 2 months ago, it has 'R' (3D5?).
So things do seem to change along the way, or the VIN decoder is...