As mentioned above, each model of Skyline does have a particular feel to it.
I always thought it was odd of PD to include the ’95, ‘96 & ’97 model year Skylines until I started to drive them.
Each model year has a particular feel to them. And beyond that, each model with in any given year will again feel different based on the overall weight of the car, engine type and little changes to the drive train. It may be subtle, but its there.
IMO – I have always been partial to the ’99 R34 GT-R. To me, it’s an easier car to throw around and not get your self in too much trouble. I ran a couple comparisons in the past between the GT-R and GT-R Vspec (stock –vs.- stock) and 9 out of 10 times I posted a better time w/ the GT-R.
As far as the NSX’s go. I ran a couple races to compare them too. I found the ’92 NSX R to be my favorite. I was able to post better times in it than any of the other used NSX’s. The only NSX that I could beat my times consecutively was the brand new NSX R.
Some will argue this, but that is how it came out with my driving style.
Your best bet is to run a couple races for some cash, and but a couple cars to test out to see what car works best for your driving style.
As far as Skylines, I would suggest trying out the ’97 GT-R and GT-R Vspec (R33) and the ’99 GT-R and GT-R Vspec (R34). I currently run a ’99 Skyline GT-R in Active Red. Its my main car in my current game. I have run (and won) over 27 series in it (not including repeated races) and have hardly built it for most of them.