as i see it, you said the wrx and any rally based production (wrx, evo, gt4 etc) vehicle is not a "real" sports car.
rally is an automotive sport, the basic definition of sports car "equipped for racing" includes the aformentioned cars, which in their road going guise is what makes them a "sports" car.
when they're modified for the sole purpose of rally/curcuit/drift then you would no longer call them a sports car. heck even integra's are called "sports" cars, depends on how "purist" you want to go. some will say even the 86 isn't a true sports car.
i've driven an ol NA 4A ae86, and until the 86/bzr is released i can't say if the hype can be justified. I sure hope it is but as everyones seen, the original hype was over it being a successor to the ae86, cheap and fun. but by all acounts it's not going to be relatively cheap anymore.......*sigh*