Ha back in the day I had a grand prix and an s-10 both had bad hinges after a while.
Those commercials that show a montage of downtown Detroit, with doormen in fancy suits, girls ice-skating near some big municipal sculpture of a hammer or whatever it was, all set to the uplifting music of that one Eminem song, building to some sort of crescendo... tells me that this must be incorrect.
Something else must have been wrong with your cars. GM engineers and UAW members could never have produced such a thing.