It looks like a '79 Aspen, not an '80. The side markers would have been visible if it were an '80 as they are integrated into the grill. The font turn signals could come with or without the bars which is why the pic of the super coupe is up there.
The first one is an '80 the second one is a '78 super coupe the third one is a '79 R/T and the fourth one is a '79 R/T as well.
Sorry I am not trying to Hijack the thread Very nice looking dart you picked up can't wait to see more pics
