Alfa Romeo won four consecutive 24 Hours of Le Mans races from 1931 to 1934.
The manufacturer’s winning car was the Alfa Romeo 8C 2300 Le Mans, a sports-racing version of the 8C 2300. Its name referred to an inline eight-cylinder engine of approximately 2.3 litres. Supercharging, strong handling and comparatively effective endurance performance made it a formidable weapon in the early years of the event.
The winning driver pairings changed each year: Lord Howe and Henry Birkin won in 1931; Luigi Chinetti and Raymond Sommer in 1932; Tazio Nuvolari and Sommer in 1933; and Chinetti and Philippe Etancelin in 1934.
This run followed Bentley’s early dominance and established an Italian winning cycle at Le Mans. The 8C 2300 also succeeded beyond the circuit, competing successfully in events such as the Targa Florio. The four-year sequence is sometimes confused with Alfa Romeo’s broader pre-war racing record, but the specific Le Mans streak belongs to the 8C 2300.