I think to some guys yes. There are still people out there who don't know what the GTR is. They see the Nissan badge and don't think much of it. Kind of like my car. I get a lot of "what is that thing??" questions when I pull up somewhere. Prior to the cam, my car was a decent sleeper. But now theirs no hiding it lol.
Sorry, but nothing about the design cue of the GTR speaks sleeper. It looks like a sports car. Wide flair, hood vents, fender vents, wide rear, thick tires, sits lows.