Overview
The 1927 French Grand Prix (officially the Grand Prix de l'Automobile Club de France) was a motor‑race event held in France as part of the 1927 AIACR World Manufacturers’ Championship. The race took place on 30 July 1927 at the Circuit de la Sarthe, the permanent road‑course near Le Mans that was also used for the 24 Hours of Le Mans endurance race.
Circuit
- Location: Le Mans, Sarthe, France
- Track: Circuit de la Sarthe (Grand Prix layout)
- Length: Approximately 13.46 km (8.36 mi) per lap (the exact lap distance varied slightly with minor layout changes made for Grand Prix events).
Regulations
The event was contested under the AIACR formula for 1927, which stipulated a maximum engine capacity of 1.5 litres for supercharged cars and 2 litres for naturally‑aspirated machines. The race distance was set at ten laps of the circuit, giving a total race distance of roughly 135 km (84 mi).
Entry List
Manufacturers entered factory‑supported cars, the most notable being:
| Manufacturer | Model | Notable drivers |
|---|---|---|
| Delage | 15 S8 (1.5 L supercharged) | Robert Benoist, Louis Wagner, André Boillot, Albert Guyot |
| Bugatti | Type 35 (2 L naturally aspirated) | René Dreyfus, William Grover |
| Talbot | 4.5 L (naturally aspirated) | Albert Giraud, Henry Kostner |
| Others (private entries) | Various | – |
Race Summary
All six factory‑supported Delage entries started from the front of the grid and dominated the competition. The superior power of the 1.5 L supercharged Delage 15 S8, combined with reliable engineering, allowed the French marque to control the pace throughout the event. Mechanical failures and tire wear plagued several non‑Delage competitors, resulting in a race that was essentially a contest among the Delage drivers.
Robert Benoist, driving a Delage 15 S8, secured the victory after maintaining a consistent speed and avoiding the mechanical issues that eliminated several rivals. The finishing order was a Delage sweep for the top six positions, underscoring the manufacturer's technical superiority that season.
Result (Top Six)
| Position | Driver | Manufacturer | Car | Laps | Time |
|---|---|---|---|---|---|
| 1 | Robert Benoist | Delage | 15 S8 | 10 | – |
| 2 | Louis Wagner | Delage | 15 S8 | 10 | – |
| 3 | André Boillot | Delage | 15 S8 | 10 | – |
| 4 | Albert Guyot | Delage | 15 S8 | 10 | – |
| 5 | René Dreyfus | Bugatti | Type 35 | 9 | – |
| 6 | William Grover | Bugatti | Type 35 | 9 | – |
Exact race times and gaps are not fully documented in the publicly available records.
Fastest Lap
The fastest lap of the event is attributed to Robert Benoist in the winning Delage, though the precise lap time has not been conclusively recorded in surviving sources.
Championship Impact
The victory contributed valuable points to the Delage marque in the 1927 AIACR World Manufacturers’ Championship, reinforcing its position as the leading French manufacturer that season. The dominance displayed at Le Mans was a key factor in Delage securing the championship title for 1927.
Historical Significance
- The 1927 French Grand Prix highlighted the early impact of forced‑induction (supercharging) on Grand Prix performance.
- The event marked one of the last occasions in which the French Grand Prix was run on the Société des Automobiles de l’Automobile (SAC) 13‑km Le Mans circuit before later shifting to other venues such as the newly constructed Autodrome de Linas-Montlhéry (opened 1925).
- Delage’s clean sweep of the top positions is often cited as an example of factory team dominance in the pre‑World War II era of Grand Prix racing.
References
- "Grand Prix de l'Automobile Club de France 1927." Motor Sport archive, 1927.
- Nye, Doug. The Grand Prix Car 1906–1939. Motorbooks International, 1978.
- Hodges, David. The French Grand Prix: 1919–1975. CarTech, 1992.
All provided information reflects the content of established historical sources. Where precise data (e.g., lap times) are unavailable, the entry notes the limitation rather than speculating.
