http://www.imcdb.org/vehicles.php?make= ... &model=Q45
I thought it was pretty sweet to see that a vast majority of appearances were 1990-1996, even though a couple of appearances were shot years after Infiniti stopped production.
And almost everyone who has or had a PS2 should remember the G50 clone in San Andreas too:

Actually I've got a confession to make after two years here on NICOForums: This was one of my favorite cars in San Andreas. When my last car died I looked online to see what the design was based on and now I'm an Emp- or Q owner in real life. So I guess all those hours beating hookers and bustin' caps at the Ballas didn't go to waste after all
