| Date | Sunday 31 October 1948 |
| Event | Penya Rhin GP |
| Circuit | Pedralbes |
| Event Format | Race of 70 laps |
| Championship | Non-championship |
| Race number | #19 of 19 in 1948 #83 (of all time) |
| Laps | 70 |
| Circuit Perimeter | 4462 m |
| Race Distance | 4462 × 70 − 10 = 312.330 km |
| Entries | 11 |
| Qualifiers | No qualifying session |
| Finishers | 11 |
| Debutants |
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| Milestones | Maserati – 1st Fastest Lap (Engine Manufacturer)
Maserati – 1st Win (Engine Manufacturer)
Luigi Villoresi – 1st Fastest Lap (Driver)
Luigi Villoresi – 1st Win (Driver)
Maserati – 1st Fastest Lap (Car Manufacturer)
Maserati – 1st Win (Car Manufacturer)
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