| Date | Sunday 27 May 1951 |
| Start time | 14:00 |
| Event | Swiss GP |
| Circuit | Bremgarten |
| Event Format | Race of 42 laps |
| Race | 8 of 22 |
| Championship race | 8 |
| Laps | 42 |
| Circuit Perimeter | 7280 m |
| Race Distance | 7280 × 42 = 305.760 km |
| Grid Format | 3-2-3-2 |
| Pole Position | Right |
| First Corner | Right |
| Track Direction | Clockwise |
| Weather | Overcast, Rain |
| Entries | 21 |
| Qualifiers | 21 |
| Finishers | 14 |
| Championship Debutants | George Abecassis (Driver),
Peter Hirt (Driver),
Rudi Fischer (Driver),
Stirling Moss (Driver),
HWM (Car Manufacturer),
Veritas (Car Manufacturer),
Veritas (Engine Manufacturer),
Alfa Romeo 159A (Car Model),
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Ferrari 212 (Car Model),
HWM 51 (Car Model),
Veritas Meteor (Car Model),
Ecurie Espadon (Entrant),
HW Motors (Entrant),
José Froilan González (Entrant),
Peter Hirt (Entrant),
Yves Giraud-Cabantous (Entrant)
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| Milestones | Car 24 - 1st Fastest Lap (Car Number)
Car 24 - 1st Pole Position (Car Number)
Car 24 - 1st Win (Car Number)
Alfa Romeo SpA - 25th Race Entry (Entrant)
Alfa Romeo - 25th Race Entry (Car Manufacturer)
Alfa Romeo - 25th Race Entry (Engine Manufacturer)
Enrico Plate - 10th Race Entry (Entrant)
Pirelli - 25th Race Entry (Tyre Manufacturer)
Shell - 25th Race Entry (Lubricant Manufacturer)
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| Records Broken |
1. Most Retirements – Talbot-Lago (22),
2. Most Race Wins – Juan Manuel Fangio (4),
3. Most 3rd Place Finishes – Alfa Romeo (3),
4. Most Consecutive Drivers' Championship Points Scores – Alfa Romeo (5),
5. Most Fastest Laps – Juan Manuel Fangio (4),
6. Most 11th Fastest Laps – Talbot-Lago (2),
7. Most 19th Fastest Laps – Talbot-Lago (1),
8. Most 19th Fastest Laps – Guy Mairesse (1),
9. Most 19th Fastest Laps in a Season – Talbot-Lago (1),
10. Most 19th Fastest Laps in a Season – Guy Mairesse (1),
11. Most Laps Led – Juan Manuel Fangio (216),
12. Most 13th Place Qualifications, Finishes and Fastest Laps – Talbot-Lago (1),
13. Most 4th Place Qualifications – Alfa Romeo (3),
14. Most 5th Place Qualifications – Alfa Romeo (3),
15. Most 7th Place Qualifications – Ferrari (3),
16. Most 8th Place Qualifications – Louis Rosier (2),
17. Most 18th Place Qualifications – Talbot-Lago (3),
18. Most 19th Place Qualifications – Maserati (2),
19. Most 19th Place Qualifications – Louis Chiron (2),
20. Most 21st Place Qualifications – Talbot-Lago (2)
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| Records Extended |
1. Most Drivers' Championship Points Scores – Alfa Romeo (18),
2. Most Podium Finishes – Alfa Romeo (14),
3. Most Race Wins – Alfa Romeo (7),
4. Most Consecutive Retirements – Talbot-Lago (5),
5. Most Consecutive Race Wins – Alfa Romeo (5),
6. Most Fastest Laps – Alfa Romeo (7),
7. Most 13th Fastest Laps – Talbot-Lago (3),
8. Most 14th Fastest Laps – Talbot-Lago (2),
9. Most 17th Fastest Laps – Talbot-Lago (2),
10. Most 17th Fastest Laps – Johnny Claes (2),
11. Most 18th Fastest Laps – Talbot-Lago (2),
12. Most 20th Fastest Laps – Talbot-Lago (2),
13. Most Races Led – Alfa Romeo (15),
14. Most Races Led – Juan Manuel Fangio, Nino Farina (6),
15. Most Laps Led – Alfa Romeo (426),
16. Most Race Entries – Talbot-Lago (43),
17. Most Race Entries – Louis Rosier (8),
18. Most Perfect Weekends – Alfa Romeo (7),
19. Most Perfect Weekends – Juan Manuel Fangio (3),
20. Most Poles – Alfa Romeo (7),
21. Most Poles – Juan Manuel Fangio (5),
22. Most 2nd Place Qualifications – Alfa Romeo (6),
23. Most 2nd Place Qualifications – Nino Farina (4),
24. Most 7th Place Qualifications – Alberto Ascari (3),
25. Most 17th Place Qualifications – Maserati (5)
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