The Saab 900 is a mid-sized automobile which was produced by Saab from 1978 until 1998 in two generations; the first from 1978 to 1993, and the second from 1994 to 1998.

The first-generation car was based on the Saab 99 chassis, though with a longer front end to meet U.S. frontal crash regulations. The 900 was produced in 2- and 4-door sedan, and 3- and 5-door hatchback configurations and, from 1986, as a cabriolet (convertible) model. There were single and twin - Zenith carburettor; fuel injected, and turbocharged engines, including both Full Pressure Turbo (FPT), and, in European models during the early 1990s, Low Pressure Turbos (LPT).

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In the mid-1980s, the president of Saab-Scania of America (U.S. importer owned by Saab AB), Robert J. Sinclair, suggested a convertible version to increase sales. The first prototype was built by ASC, American Sunroof Company (now American Specialty Cars). Similarly, Lynx Motors International Ltd produced two "convertible" models, just prior to the official 1986 launch.

The Trollhättan design department, headed by Björn Envall, based its version on the 3-door hatchback while the Finnish plant used the sturdier 2-door version, which also looked better and was therefore selected for production. The initial production was not planned to be large but the orders kept coming in and a classic was born.

The new car was shown for the first time at the Frankfurt Motor Show (IAA) in the autumn of 1983. The first prototype aroused enormous interest and in April 1984, Saab decided to put the car in production at Valmet Automotive in Finland. The production of the first 900 convertible started during the spring of 1986.

The convertible usually had a 16-valve turbocharged engine, some with intercooler, but it was also offered in certain markets with a fuel-injected 2.1 L naturally aspirated engine from 1991 on.