Hey Antony, welcome aboard.
If Dave's spec info is correct (I can't get FAST working on my computers, no matter what I've tried), then yours is a factory base-version of the turbo AWD. It would've been produced around halfway through the s1 run, as the s2 was released in August '98, as you've found from the Russian website.
In the model code, WGNC34, the "G" means it was an RB25-engined car (there was also a non-turbo RB25, so this part of the model designation doesn't really specify), and the "N" means it came out with the ATESSA AWD system. In another example, if a Stagea came out as a WHC34, then it would be an RB20DE-powered car (non of which were turbocharged) with RWD only.
(I really should update the first page of the Buyer's Guide, I've learnt and accumulated a lot of info since I first put it up there...)