GTA Effect

Years ago in Grand Theft Auto: Vice City for PS2, I noticed that whatever car you're currently driving, you see more of on the road. I dubbed this the GTA Effect. Shortly after, I got my Blazer, and proved the GTA Effect holds true in real life. I don't remember seeing a Blazer before I got mine, suddenly they were everywhere. This continued to hold true when I got rid of the Blazer and got my Impala. Now I never see Blazers (of course, it helps that they were discontinued), but Impalas were everywhere. Now I just got rid of the Impala for an Equinox. I'm not seeing other Equinoxes on the road, but all the sister cars and other crossover class cars from other companies (Pontiac Torrent, Ford Edge, etc) are everywhere. I wonder if it's that I'm more prone to notice a car when I'm driving the same thing, or if I'm a major trend setter and whatever car I buy, everyone else in the area decides to get too.