Oldsmobile Cutlass S
The Oldsmobile Cutlass Supreme was a mid-size car produced by General Motors for the American market. It was always at the top of the Cutlass range. It began as a trim package, developed its own roofline, and eventually was mechanically divorced from the later, smaller Cutlasses.
The Cutlass Supreme name lasted from 1966 until 1997. There was no direct replacement for the Cutlass Supreme itself, although the Intrigue introduced for 1998 was designed in size and price to replace all the Cutlass models.
In 1973, the Cutlass Supreme, like other GM mid-size cars, was redesigned. Hardtop models were replaced by new "Colonnade" styling with fixed center pillars. Concerns over proposed rollover standards caused many automakers to phase out their pillarless hardtops and convertibles throughout the 1970s, and the Cutlass was no exception. Cutlass Supreme coupes had a unique roofline with vertical opera windows not shared with other Cutlass coupes, as well as unique front end styling. For 1976, a new front fascia design with quad rectangular headlamps debuted. This new Cutlass design was highly successful, becoming one of the best-sellers of the time. The Cutlass line as a whole was America's best-selling car in 1976, helping Oldsmobile to become the only marque outside of Ford and Chevrolet to break one-million units sold. By 1977, however, GM had downsized its full-size models, and the Cutlass Supreme was now nearly identical in size to the redesigned Delta 88. That situation would last only that one year, as GM planned to downsize the Olds Cutlass and other intermediates for 1978.
Source: Wikipedia, 2011