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| Date | Sunday 27 January 1957 |
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| Event |  Buenos Aires GP |
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| Circuit | Buenos Aires |
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| Event Format | Two heats each of 30 laps; timings aggregated |
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| Championship | Non-championship |
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| Race number | #1 of 12 in 1957
#266 (of all time) |
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| Laps | 60 |
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| Circuit Perimeter | 4556 m |
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| Race Distance | 4556 × 60 + 618 = 273.978 km |
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| Grid Format | 4-3-4-3 |
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| Pole Position | Left |
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| First Corner | Unknown |
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| Entries | 20 |
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| Qualifiers | 0 |
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| Finishers | 15 |
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| Debutants | Enrique Sticoni (Driver) |
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| Milestones | Car 2 – 1st Fastest Lap (Car Number)
Car 2 – 1st Win (Car Number)
Maserati – 1st Fastest Lap (Engine Manufacturer)
Maserati – 1st Win (Engine Manufacturer)
Juan Manuel Fangio – 1st Fastest Lap (Driver)
Juan Manuel Fangio – 1st Win (Driver)
 Maserati – 1st Fastest Lap (Car Manufacturer)
Maserati – 1st Win (Car Manufacturer)
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