For 1967, the LTD underwent several changes, with a four-door pillared sedan joining the model range. To comply with federally-mandated safety regulations, the LTD received a padded steering wheel, non-protruding instrument panel knobs, a dual-circuit brake master cylinder, four-way hazard flashers, and front outboard shoulder belt mounting points. While the roofline of the four-door hardtop saw minor styling revisions, the two-door hardtop saw extensive changes, giving it a formal profile. The front seats saw a new option, Twin Comfort Lounge Seats (a 50/50 split bench seat). In various forms, the configuration would be adopted by American automakers into the early 2000s. For the first time, the LTD was produced with a direct Lincoln-Mercury counterpart, as Mercury introduced the Marquis two-door hardtop.