Duetto's history, test drive, 1st series. La storia del nome e del lancio dell'Alfa Romeo Duetto; prova su strada. Prima serie. 1966 Alfa Romeo 1600 Spider. It is known worldwide as “Duetto”. The name was chosen from more than 140.000 ballots for Alfa Romeo’s write-in competition. The winner, Guidobaldo Trionfi, received a brand new white Duetto. The glamorous presentation was held aboard a ship headed for New York. There was even a small testing track on board and the ship stopped in Cannes during the film festival for famous actors and directors to try out. Although the name Duetto was never officially used, the car is still held in high regard amongst collectors.