Starting with the engine, one of the greatest V6 engines out there, Nissan ups the power from 332 @ 7,000 rpm and 270 lb-ft @ 5,200 to 350 @ 7,400 and 276 @ 5,200. The 6-speed manual transmission is the same in either version but it is the only trans available in the NISMO.
The brakes see a huge jump in disc size. On the standard 370Z the discs are 12.6" diameter front and rear. The NISMO has 14.0" front and 13.8" rear. The bigger rotors are optionally available on the standard 370Z.
The NISMO is outfitted with 19X9.5" front wheels and 19X10.5" rears fitted with P245/40R19 tires front and P285/35R19 rear. They are Bridgestone Potenza S001s.
Nissan says the NISMO has a more aggressive look to if with the body modifications. Personally I like the looks of the standard 370Z better. But to each his/her own.
I didn't go canyon carving with 370Z NISMO; I was in the San Francisco Area looking for an apartment. And I didn't do any actual stopwatch testing. The V6 is a great engine and 350 hp is adequate for acceleration (0-60 has been reported in around 5 seconds). Fuel economy is not bad for such a car - 18 city/26 highway.
For a 3,300 lb car the 370Z NISMO is pretty nimble and quick. What it isn't is comfortable. And that's where my wish to be younger enters. I have no quibble with the shape of the sport seat even though I don't have a sport butt. But it was a bit hard, so hard that I took to removing my wallet from my rear pocket. Now don't get the wrong idea about my wallet; I'm not one of those guys who's wallet is about 4" thick. There was just no give to it.
Add in the extremely low profile tires and stiff suspension and you have a car for young people. The tires were also very noisy. The problem with this being a kid's car is the price - $43,020. Maybe Nissan needs to make a version for us old fogies - All the power with the base 370Z tires and suspension.