The car was very successful in Spain having sold 896,136 units,[1] and was produced in 4-door, 5-door station wagon (Familiar) and 2-door coupé (Sport) ( versions under various engines and trim levels.

The SEAT 124 model derived from the Italian Fiat 124 car and represented a great step forward for the automotive era in Spain when it was introduced.

In 1976 production of the car was transferred from the Zona Franca to the Landaben plant in Pamplona, newly acquired from Authi, resulting in the elimination of the '124 Familiar' 5-door station wagon versions.

The variants equipped with the Twin Cam motor, victorious for decades in all-type competition, were generally known as FL which had been the internal code name used by the brand.

Its engine soon became famous for its nerve and offered high performance in many circumstances: either as a taxi cab, a police car, an ambulance, a hearse, or even a fire truck.