In 1974, the 108 in (2,700 mm) wheelbase variant of the A-body sedan was dropped, and the Valiant sedan became a rebadged Dart. The larger size resulted in thicker C-pillars and new rear fender contours. Thenceforth, the only differences between the Valiant and Dart were minor cosmetics. The 1973 Valiant grille and front sheetmetal were retained for 1974, but the front bumper's rubber guards were chromed. The U.S. Federal 5 mph (8.0 km/h) bumper standards were applied to rear bumpers for the 1974 models, adding even more weight to the Valiant.
1974 introduced the Valiant Brougham and its twin, the Dodge Dart Special Edition. Available in two- or four-door models, they were a compact luxury car meant as an attractive alternative to larger luxury cars following the 1973 oil crisis. The Brougham had generous chrome trim, a vinyl top, deep cut-pile carpeting, velour cloth upholstery, interior door padding, color-keyed or simulated wire wheel covers, and a special selection of paint and trim combinations. Much of the optional equipment on a regular Valiant became standard equipment on Brougham models such as power steering, power disc brakes, air conditioning, cruise control, electric rear window defroster and an AM/FM radio.
Source: Wikipedia, 2013