Originally Posted by FairmanZ

I have the official data from a Nissan FairladyZ brochure that I got in Japan:

Base = 1480 kg (3263 lb)
Base + Sport = 1500 kg (3307 lb)
Touring = 1510 kg (3329 lb)
Touring + Sport = 1520 kg (3351 lb)

Also, the JDM Sports Package does not include the rear wing and front spoiler (those are separate options), so the US Sport Package is a bit heavier yet.

I think the data on the nissanusa website is a little too optimistic, as the car mag test weights seem to match the Japanese weight data. OTOH, the Japanese brochure uses nice round numbers in kg, so I don't think it's 100% exact either.