The cars were strong and successful contenders in the 2-liter class and were actively raced in the Italian GT Championship in the second half of the 1950s, winning their class in 1956 and 1959. The cars also participated in legendary races like the Mille Miglia, Targa Florio and Giro di Sicilia. This history of the twenty-one cars made by Officine Maserati S.p.A. in Modena and bodied by Carrozzeria Zagato in Milan, is listed chassis by chassis and profusely illustrated with period photographs and documents, many only recently uncovered.