The Saleen brand was established in 1983 originally as Saleen Autosport by Steve Saleen, a former professional Formula Atlantic race car driver. The 1st Saleen was produced in 1984 when they built 3 cars as the first production run – a white hatchback, a copper glow hatchback, and a black hatchback.
In 1985, Steve Saleen put the first certified supercharger on a production Saleen Mustang. This car was delivered to Nault Ford in Manchester, NH and was the first use of a centrifugal supercharger on the late model Mustang.
In 1986, the Saleen made its entry into the Sport Car Club of America Race Series with a race prepped version of the Saleen Mustang. A notable win that year at the grueling 24 Hours of Mosport was the catalyst for Saleen vehicles becoming heavily involved in motorsport throughout the rest of the 1980s.
Source: Wikipedia (original)