i think people feel its significant due to be something different...when yo drive down the road its normally "civic civic civic integra integra civic integra integra mustang mustang mustang civic civic eclipse eclipse eclipse eclipse.....ect" then you see a supra, a rx7 ,a lambo or the rare sighting of a skyline(ive still havent seen one

) these cars arent rare(except skyline), just not as common as other cars.
its just something new to look at. i get excited when i see other supras, or when the evo and sti came out(or any new car for that matter)or see something unique like the other day this guy was driving around in a 50's style police interceptor. i thought that shit was hot!