The Fabryka Samochodów Małolitrażowych (transl Small Car Factory), commonly known as FSM, was a Polish automobile factory born from an agreement between the FSO and Fiat in the 1970s for the construction of a new model, the Polski Fiat 126p, Polish version of Fiat 126.

For the project a new manufacturing plant was opened in Tychy.

The FSM brand was active between 1971 and 1992, when it was privatised and Fiat Group took control of it.

Fiat Auto Poland's other plant at Bielsko-Biała, destined mainly to the construction of the mechanics, from 2002 has become center of the joint venture between Fiat Group and General Motors for the construction of the small 1.3-litre Multijet diesel engine.

Models that were produced at the Bielsko-Biała and Tychy factories (FSM and Fiat Auto Poland):