The new GTR is a very nice looking car, i'd get that over a Porsche or M3 simply because it's more exclusive. I guess it'll be more exclusive because of the Nissan badge. In a way thats good, because if i bought a car that cost £60k, i'd like to see very few of them on the road. M3's will be so common, saw three in one lday last week. Must admit i loved the white one.
With the Porsche, theres so many Carrera's that the average person would be hard pressed to tell the difference.
Drive down a street or fuel station in a GTR, i'm sure there will be complementing looks, and this feeling will last longer because of the rarity. The only ppl who will look down on this are the badge snobs and those who hate 'Jap crap.'