Thanks guys, you have all raised some really valid points.
The GTR's im looking at are as follows
http://www.carsales.com.au/all-cars/privat...me&__Nne=15
http://www.carsales.com.au/all-cars/privat...me&__Nne=15
And of course the N1 that Kristian has.
I can see everyones point of them all being close on 16yrs old and that its more of a maintainance up keepp with GTR's thats the killer. I figure if i get the N1, it will be restored, km's kept low and never tracked. But if i go with one of the others i can use it a lot more and not have to worry so much about the kilometers or accidents. Either way the up keep on these will be similar, But David raised a really good point about modifications done on the other two, i will have to do my research and contact the owners to find out these details.
Kristians N1 is a very clean car, only mods being wheels and pod filters, slight wear on the drivers seat, but other than that its totally original N1 goodness.
Thanks again for your input guys, i guess it does really come down to what i see as a more practical car, it will not be a daily driver no matter which i choose.