The Tesla vehicle identification number or VIN roughly follows international recognised standards ISO 3779 and ISO 4030 for North America but as most things Tesla. it doesn't quite follow the standards completely.
The structure Tesla follows is:
People have tried to match the vehicle attributes to specific characteristics however we find this can be unreliable as certain characters change depending on others attributes, over time and even country to country. Using our database of car details we have decided to report the range and permutations of cars that have a specific combination of characters to allow the user to decide.