Name: Arno I°
Year of build: 1939
Engine: Alfa Romeo Tipo 158 1500 cc.
Class: 400 KG.
Pilots: G284 Castoldi Achille (1939>1940)
Today: Destroyed
Name: Arno II°
Year of build: 1946
Pilots: 8 Castoldi Achille (1946>1948), 8 Romani Guido (2020)
Today: Hystoric
Name: Arno VI
Year of build: 1948
Engine: Alfa Romeo Tipo 158 1500 cc. senza compressore
Pilots: 8 Castoldi Achille (1948>1949)
Name: Sant' Ambrogio II°
Year of build: 1949
Engine: Alfa Romeo Daimler-Benz AG601 12000 cc. 1450 HP
Class: Unlimited
Pilots: Castoldi Achille (1949)
