Two 815s, numbers 020 and 021, were completed and entered in the 1940 Brescia Grand Prix, which ran nine laps of a 103 miles (166 km) street circuit.
Rangoni and Nardi raced in 020, while Ascari and Giuseppe Minozzi raced in 021.
After leading the 1500 cc class in the first lap, Ascari's car developed valve problems and broke down.
Rangoni then took the lead, set the lap record for the class, and had a lead of more than half an hour when his engine failed after seven laps.
Two 815s, numbers 020 and 021, were completed and entered in the 1940 Brescia Grand Prix, which ran nine laps of a 103 miles (166 km) street circuit. Rangoni and Nardi raced in 020, while Ascari and Giuseppe Minozzi raced in 021. After leading the 1500 cc class in the first lap, Ascari's car developed valve problems and broke down. Rangoni then took the lead, set the lap record for the class, and had a lead of more than half an hour when his engine failed after seven laps.
Auto Avio Costruzioni 815