Not saying it was NOT the first, more it looks like they either have added bits that where not on the first ones to be built or the ones I am talking about where made before this and they gave it a different chassis numbering sequence.
As for its Nissan owning it and therefore likely to be correct , they do have a tendency to say anything they want, just try to calling NMGB with warranty issues and see if you believe what they tell you.
Chassis number Z33-000001 probably was the first one you know
The fact its stored in Nissans own storage facility probably backs that up somewhat as well ..........