For 1966, minor changes greeted the Ambassador range. The V-shaped horizontal louver spanned unbroken between the headlamps and the effect was continued with twin rectangular trim pieces attached to the side of the front fenders at their leading edges by the headlamps. The effect was repeated in the new vertical wraparound taillamps with the top-line models receiving a twin set of horizontal ribbed moldings across the back of the trunk lid that simulated the look of the front grille. Hardtop coupes received a redesigned roofline that was angular in appearance with an angle cut rear side windows and rectangular rear window. The backlight no longer curved and wrapped slightly around the C-pillars. The changes made for a more "formal" notchback look that was popular at the time.