GTR R 34 variants???

I was wondering what are the difference between the different GTR models like i know vspec 2 is different lsd and minor suspension. What about the NUR spec and all the other variants what are there difference??

Believe it or not, the V-Spec 2 was more visual upgrades then anything else. Here's a great link with the GTR model info/differences:

http://www.j-garage.com/2110.htm