That was 15 years ago. The prefix "GT-R" has evolved far past a boy racer dream car and into an actual possibility for people all over the world.
Canada has a law saying that any car over the age of 15 years old is allowed to be imported into the Country. We get LOTS of GT-R's, all the time.
Sure they're all R32's, but they're also all RB26DETT's and RB30's.
As for using the title Nissan, just let Nissan do it.
In the early 1990's Nissan was in financial termoil, and they're name was starting to look more like Hyundai then Nissan.
Now however, Nissan has a nameplate which is highly recognized as being upscale, and refined.
If Nissan chose to use the Nissan title, and not Infiniti, then leave it up to them.
Sitting here arguing about the advantages and disadvantages of the choice will do nothing to persuade them to change it.