I can only compare it as being a passenger, but to me the porsche's handling felt so crisp and responsive. Compared to the gtr its hard to say as I didnt drive the thing but unmodified in any way the porsche just changed directions with ease with no body roll whatsoever. Compared to the gtr if it were stock you have to upgrade the suspension to make it feel like that. The brakes on the thing were awesome. I think there the same size as the gtr but the porsche weighing around 250-300kg less makes u huge difference in stoping power. Power delivery is on a different level being a 3.6 litre. There is so much grunt down low that it just pulls you hard than at around 3k revs its even harder. There is hardly any transition onto boost, just a feeling that you know it is on by how much harder its just pushed you into your seat. Owner said he ran a 12.4 stock. The only thing I didn't like about the porsche is that its so quite but thats an easy fix with a exhaust and some induction mods. Apart from that in my opinion you don't need to touch it whereas the gtr you have to spend a bit of money to get it to that level. 300kw in the gtr, a good set of coilovers, sway bars and brakes and you will out do the porsche. Pretty much were im at now with the brakes on there way:) at this level there really isn't much the gtr cant play with