1978 UK & Ireland TV commercial for the Fiat Supermirafiori
The 131 was the replacement for the successful Fiat 124, and available as a 2-door and 4-door saloon and 5-door estate. The 131 was given the Mirafiori name after the Turin suburb where the cars were produced. Naming the car in this way marked a break with the former Fiat convention, established in the 1960s, of naming their mainstream models only with a three digit number, and it set the pattern for Fiat to adopt Anglo-American style car naming practice, with carefully chosen names for subsequent new models. Initially, the 131 was offered with 1.3 L and 1.6 L single overhead camshaft engines. Revisions were made in 1978 and 1981, and all models were produced until production ceased in 1984.
1,513,800 units total were produced in Italy
Info gleaned from Wikipedia