NISMO Cube has actually already happened Lol. In Japan only thankfully from what I recall.
Autech does most of the custom aero parts for NISMO. The NISMO 370Z and 350Z were actually designed by Autech and labeled as NISMO. Supposedly there is a rumor that the two divisions will be combinied soon.
I remember when I was in Japan there was NISMO El Grande's running around the NISMO Festival at Fuji . I thought it was kinda cool, I could see myself rocking that with a few kids.