sentences:  The 1950s proved to be a successful decade for Maserati.Orsi hired his brother in-law Alceste Giacomazzi as new general director, and succeeded in luring Ferrari employee Alberto Massimino to Maserati (1944–52), as well as hiring the Argentine driver ace Juan Manuel Fangio (1953).Fangio went on winning the Formula One World Championship for Maserati in 1954 and 1957.