Racing cars, he won the Spa 24 Hours 1930 with Attilio Marinoni in an Alfa Romeo 6C. In 1932 Ghersi was in the Mille Miglia and XXII Targa Florio in an Alfa Romeo 8C 2300. In 1933, with himself as the only driver, he formed the Pietro Ghersi Racing Team based in Genova, using a 2.3-liter Bugatti Type 35, a 1.1-liter Maserati monoposto, and a 2.3-liter Alfa Romeo. He raced for Scuderia Ferrari 1934 and privately in a Maserati 8CM 1935-36. He continued until the 1938 season.
- picture and biography (including race participations) from Leif Snellmans racing archive
- 1933 season lineup