My understanding is that in 2000 (approx Aug-Oct) Nissan released an update for the R34 GTR:
-V-Spec became V-Spec 2 and got carbon bonnet, updated interior, aluminum pedals, larger rear rotors, clear front and side indicators etc
-Non V-Spec was still non V-Spec yet got the updated black cloth interior, aluminum pedals, slightly larger rear rotors, clear front and side indicators etc but no carbon bonnet, no front or rear diffusers, slightly softer suspension (I think?) and an MFD that didn't include intake and exhaust temps.
Therefore it is possible to get a 2000 model GTR V-Spec (from Jan to Aug-Oct) or GTR V-Spec 2 (Aug-Oct onward)
Also I believe that the front V-Spec diffuser was a factory option for non V-Spec GTR's.
EVOIV is also right regarding the spacing 0-3,000rpm on the tacho. This makes me think that the GTR in question is not a genuine v-spec or has had a dash swap (I cant see if it has the rear diffuser, intake and exhaust temps on the MFD). Ultimately the best way to check a GTR is buy using Nissan FAST and running the VIN. There are too many people out there fiddling GTR's and claiming things they shouldn't.