In 1970 a facelift included a grille with 13 vertical blades set against a delicately cross-hatched rectangular opening. The bright metal headlamp surrounds were bordered with body color to give it a more refined look. Narrow vertical “vee” taillights were seen again, but now had additional smaller V-shaped bottom lenses pointing downward below the bumper. Wheel discs and winged crest fender tip emblems were new.

Exterior distinctions came from a DeVille script above the rear end of the belt molding and from the use of long rectangular back up light lenses set into the lower bumper as opposed to the smaller square lens used on the Calais. A new feature was a body color border around the edge of the vinyl top covering when this option was ordered. 1970 was the last year that DeVille offered a convertible body style, 1970 was also the last model year for pillared sedans until hardtops were permanently dropped in 1977. A total of 181,719 DeVilles were sold for that model year, accounting for 76% of all Cadillacs. Never again would Cadillac sales be dominated to such a degree by a single model.

DeVille Convertible $6,068 in 1970
Weight: 4660 lbs
Built: 15,172