| 2 | Jose-Froilan GONZALEZ | Scuderia Achille Varzi | Maserati | 4CLT/48 | Maserati | 4CLT L4 c 1.5 | Pirelli |
| 2 | Nello PAGANI | Scuderia Achille Varzi | Maserati | 4CLT/48 | Maserati | 4CLT L4 c 1.5 | Pirelli |
| 4 | Johnny CLAES | Ecurie Belge | Talbot Lago | T26C | Talbot | 23CV L6 4.5 | Englebert |
| 6 | Yves GIRAUD-CABANTOUS | Automobiles Talbot-Darracq SA | Talbot Lago | T26C-DA | Talbot | 23CV L6 4.5 | Dunlop |
| 8 | Eugène MARTIN | Automobiles Talbot-Darracq SA | Talbot Lago | T26C-DA | Talbot | 23CV L6 4.5 | Dunlop |
| 10 | Louis ROSIER | Automobiles Talbot-Darracq SA | Talbot Lago | T26C-DA | Talbot | 23CV L6 4.5 | Dunlop |
| 12 | Luigi FAGIOLI | SA Alfa Romeo | Alfa Romeo | 158 | Alfa Romeo | 158 L8 c 1.5 | Pirelli |
| 14 | Juan Manuel FANGIO | SA Alfa Romeo | Alfa Romeo | 158 | Alfa Romeo | 158 L8 c 1.5 | Pirelli |
| 16 | Giuseppe FARINA | SA Alfa Romeo | Alfa Romeo | 158 | Alfa Romeo | 158 L8 c 1.5 | Pirelli |
| 18 | Alberto ASCARI | Scuderia Ferrari | Ferrari | 125 | Ferrari | 125 V12 c 1.5 | Pirelli |
| 20 | Raymond SOMMER | Scuderia Ferrari | Ferrari | 166 | Ferrari | 166F2 V12 2.0 | Pirelli |
| 22 | Luigi VILLORESI | Scuderia Ferrari | Ferrari | 125 | Ferrari | 125 V12 c 1.5 | Pirelli |
| 24 | Peter WHITEHEAD | Scuderia Ferrari | Ferrari | 125 | Ferrari | 125 V12 c 1.5 | Pirelli |
| 26 | Louis CHIRON | Officine Alfieri Maserati | Maserati | 4CLT/48 | Maserati | 4CLT L4 c 1.5 | Pirelli |
| 28 | Franco ROL | Officine Alfieri Maserati | Maserati | 4CLT/48 | Maserati | 4CLT L4 c 1.5 | Pirelli |
| 30 | Prince BIRA | Enrico Platé | Maserati | 4CLT/48 | Maserati | 4CLT L4 c 1.5 | Pirelli |
| 32 | Emmanuel de GRAFFENRIED | Enrico Platé | Maserati | 4CLT/48 | Maserati | 4CLT L4 c 1.5 | Pirelli |
| 34 | Felice BONETTO | Scuderia Milano | Maserati Milano | 4CLT/50 | Maserati | 4CLT L4 c 1.5 | Pirelli |
| 36 | Reg PARNELL | Scuderia Ambrosiana | Maserati | 4CLT/48 | Maserati | 4CLT L4 c 1.5 | Dunlop |
| 38 | Rudi FISCHER | Ecurie Espadon | SVA | 1500 | FIAT | L4 c 1.1 | Pirelli |
| 40 | Toni BRANCA | Privé | Maserati | 4CL | Maserati | 4CLT L4 c 1.5 | Pirelli |
| 42 | Philippe ETANCELIN | Privé | Talbot Lago | T26C | Talbot | 23CV L6 4.5 | Dunlop |
| 44 | Harry SCHELL | Ecurie Bleue | Talbot Lago | T26C | Talbot | 23CV L6 4.5 | Dunlop |