<Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Successor </Th> <Td> Saturn ION </Td> </Tr> <P> The Saturn S - Series was a family of compact cars from the Saturn automobile company of General Motors . This was the first series of Saturn vehicles . The automobile platform, the Z - body, was developed entirely in - house at Saturn, and it shared very little with the rest of the General Motors model line . It implemented a spaceframe design, which had been used on some Pontiacs during the 1980s . This meant that the side panels did not carry load and could be made of plastic instead of metal . These polymer panels were dent - resistant, something that remained a selling point for Saturn until just a few years before the Saturn brand was discontinued . The S - series was sold from the fall of 1990 for the 1991 model year through the end of the 2002 model year . Significant design updates were made in 1995, 1996, and 2000 for all cars, and the SC coupes were redesigned significantly in 1997 . Nearly every year of the S - Series' existence brought at least some minor changes to the architecture of the car . </P> <P> The S - series debuted with SL, SL1, and SL2 sedan models and the SC coupe model in 1990 for the 1991 model year . For the 1993 model year they were joined by the SW, SW1, and SW2 station wagon variants of the SL, and a lower - end coupe called the SC1 was added . It is rumored that the SL sedan models were to be called the SS for Saturn Sedan, but due to the usage of the SS moniker by GM marques such as Chevrolet, GM corporate would not allow it . </P>

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