I always wondered if turn signal lenses were different between Dart Sport/Dusters and their Swinger/Scamp counterparts. White on the fastbacks and yellow on the notchbacks, or at least based on the notchback trim options. Obviously they interchange depending on the years. ('73-'74 and '75-'76) The rear shot pic of the white car with stripes is a '74 or '76 Dart Sport. It depends when that stripe was on option. '76? In 1975, Sports and Dusters had a bezel panel across the back connecting the taillight bezels.