I drove my 2009 to a racing scale, with a full tank it came in at 3348lbs. This is on a base model with sports pkg
300ZX weight
(3474 lbs)
http://www.angelfire.com/ga3/300zx3/images/auto3005.jpg
(35xx lbs)
Nissan 300ZX Enthusiast's Buying Guide - Sport Compact Car
(3550lbs - 3600lbs)
1994 10Best Cars - 10Best Cars - Page 11 - Car and Driver
They sold almost 30K unit in 1990 alone, that's almost as much as a 4 years run with the 370.
This is what else I do know
I have 4 19" rims and wide 19" tires, not little 16" rims.
I have side airbags and crash bars at the door
I have rotors that are as big as the wheels on some cars
I have 6 forward gears
I have a chassis that is way stiffer
I have a car that handles better
I don't know why some of you guys have fascination with old cars. They were great back in 1990, but it is time to move on and get a new car. Why compare something that is 20 years old.