370Z Touring with sport package weight (MT)

Auston

I have been trying to find a convincing reference for the weight of
a 2009 370Z Touring with sport package (manual transmission), and
I think I've got a decent estimate now-

3,346 lbs

(3,232lb base 370Z + 46lb Touring package + 68lbs for NISMO
equipment = 3,346 lbs)

All of the weights above have been taken/deduced from the Nissan
numbers in the brochure/website (NISMO equipment weight = NISMO
370Z weight - base 370Z weight).

The NISMO package is used as a rough equivalent for the sport package
because the NISMO package uses the same brakes (calipers & rotors),
LSD, and synchrorev match MT. Furthermore, the NISMO equipment
uses similar size tires & wheels (same size but 1/2 inch wider); and the
NISMO spoilers & body molding should be slightly heavier than the
spoilers on the sport package. So, all in all the NISMO package will be a
little bit heavier than the sport package.

That said, anybody found additional convincing references for the
weight of a 2009 370Z Touring with sport package (MT)? Would be nice
to get a statement from Nissan somewhere : )