Here's a 1977 Coupe DeVille in Sable Black.
'77 was the first year of the downsized DeVille, being ten inches shorter and a thousand pounds lighter than the gargantuan '76 models. Careful juggling of dimensions and raising the roofline meant that the smaller car actually had more head- and legroom and a larger trunk than its predecessor. You could still stuff three or four Hoffas back there if you packed right.
The engine was downsized, too, from the old 500cid V8 to a 425-cube motor that put out 180bhp, or 195 with optional fuel injection. The 500 had been so choked by reduced compression and restrictive exhausts that horsepower remained pretty much the same, anyway.