as the name suggests, it's the most-up-to-date Quality Assurance branch, for the devs to do bug fixes and test weird specific conditions for things.
We don't know but you can kinda guess by the name, it's not public so when it gets updated it means they are doing something internally
the primera was not a RWD car, its FWD, correct me, if i'm wrong but i haven't seen any primeras which came RWD from the factory
No, it is not. The engine is transversely mounted. It is impossible that to be RWD. https://www.ultimatecarpage.com/spec/396/Nissan-Primera-GT-BTCC.html
Does anybody have data on what time the updates usually drop? Anyway i don't think it's today as there was a repostery update today
I don't think the update would come out today. I feel like there would have been a recent teaser if it was coming out today. So I'm thinking Wednesday would make more sense.