The first two wins were achieved by Giovanni Rocco with a Maserati 6CM and the last two by Luigi Villoresi with a 6CM in 1939 and a 4CL in 1940.
As dúas primeiras vitorias logrounas Giovanni Rocco cun Maserati 6CM e as dúas últimas Luigi Villoresi cun 6CM en 1939 e un 4CL en 1940.