I never paid attention to the wheels that came with my free car when I ordered brakes for it, they looked like boring aluminum 15's, but turned out to be 16's from a mid 90's Grand Prix and might have actually been able to clear the Camaro calipers and Impala rotors...
I'm sure the new stock stuff is better than worn out rusty brakes though. Once that stuff wears out, I'll replace them properly with all this info