I think one of my college classmates had a 1973 Le Mans Sport Coupe with the Landau vinyl top similar to this 1976:
https://1976lemans.blogspot.com/
His was dark green with the black top and window louvers - nicknamed "The Armadillo". My 1969 Buick Skylark was affectionately referred to as "The Tuna Boat".
https://www.flickr.com/photos/autohistorian/50722433772
Strange how I always wound up driving when there were six of us going out....