Countless tuners and car body builders occupied themselves during the 1950s with the Fiat 1100. They converted the engine or built different bodies on the existing chassis. One of these was Pasquale Ermini, who used the Fiat 1100 engine block but cast his own cylinder heads, often with twin overhead camshafts. He put these engines with a five-speed gearbox in a tubular chassis of his own design. The early 1950s were Ermini's most successful. His cars won their class of the classic Targo Florio and Giro Sicilia (Round of Sicily) races in 1950, with Piero Scotti coming fourth overall in the Sicilian race. The cars also made their mark on the Mille Miglia. When the demand for small sports cars diminished, Ermini switched to building special bodies but when business in these also slumped, he closed the business in 1962.