Do we know where the seat positions for cars are saved and if it's possible to copy them over from the Beta to the release version and vice versa?
yep, default.sav So not really a good idea to copy it between public & beta as of too many other parameters that could be incompatible. Thats why the answer is "no"
Anwering 'no' to two questions posed without elaborating isn't helpful at all. Work on it. And of course, thanks for the information.