 In late 1959, 40 trolleybuses were acquired from the Italian Fiat - Alfa Romeo - CGE consortium.On 15 April 1960, line H was opened, with a route running from the Plaza Sarmiento to the city's northern boundary, with Granadero Baigorria.Between August and December 1961, brand new Fiat trolleybuses arrived in Rosario, allowing network expansion with the creation of new lines.