| 1 | Juan Manuel Fangio | Alfa Romeo 158 | Alfa Romeo 158 L8 c 1.5 | Pirelli | SA Alfa Romeo |
| 2 | Giuseppe Farina | Alfa Romeo 158 | Alfa Romeo 158 L8 c 1.5 | Pirelli | SA Alfa Romeo |
| 3 | Gianbattista Guidotti | Alfa Romeo 158 | Alfa Romeo 158 L8 c 1.5 | Pirelli | SA Alfa Romeo |
| 3 | Luigi Fagioli | Alfa Romeo 158 | Alfa Romeo 158 L8 c 1.5 | Pirelli | SA Alfa Romeo |
| 4 | Reg Parnell | Alfa Romeo 158 | Alfa Romeo 158 L8 c 1.5 | Pirelli | SA Alfa Romeo |
| 5 | David Murray | Maserati 4CLT/48 | Maserati 4CLT L4 c 1.5 | Dunlop | Scuderia Ambrosiana |
| 6 | David Hampshire | Maserati 4CLT/48 | Maserati 4CLT L4 c 1.5 | Dunlop | Scuderia Ambrosiana |
| 8 | Leslie Johnson | ERA E | ERA L6 c 1.5 | Dunlop | ERA Ltd |
| 9 | Tony Rolt | ERA E | ERA L6 c 1.5 | Dunlop | Privateer |
| 9 | Peter Walker | ERA E | ERA L6 c 1.5 | Dunlop | Privateer |
| 10 | Joe Fry | Maserati 4CL | Maserati 4CLT L4 c 1.5 | Dunlop | Privateer |
| 10 | Brian Shawe-Taylor | Maserati 4CL | Maserati 4CLT L4 c 1.5 | Dunlop | Privateer |
| 11 | Cuth Harrison | ERA B | ERA L6 c 1.5 | Dunlop | Privateer |
| 12 | Bob Gerard | ERA B/C | ERA L6 c 1.5 | Dunlop | Privateer |
| 14 | Yves Giraud-Cabantous | Talbot Lago T26C-DA | Talbot 23CV L6 4.5 | Dunlop | Automobiles Talbot-Darracq SA |
| 15 | Louis Rosier | Talbot Lago T26C | Talbot 23CV L6 4.5 | Dunlop | Ecurie Rosier |
| 16 | Philippe Etancelin | Talbot Lago T26C | Talbot 23CV L6 4.5 | Dunlop | Privateer |
| 17 | Eugène Martin | Talbot Lago T26C-DA | Talbot 23CV L6 4.5 | Dunlop | Automobiles Talbot-Darracq SA |
| 18 | Johnny Claes | Talbot Lago T26C | Talbot 23CV L6 4.5 | Englebert | Ecurie Belge |
| 19 | Louis Chiron | Maserati 4CLT/48 | Maserati 4CLT L4 c 1.5 | Pirelli | Officine Alfieri Maserati |
| 20 | Emmanuel de Graffenried | Maserati 4CLT/48 | Maserati 4CLT L4 c 1.5 | Pirelli | Enrico Platé |
| 21 | Prince Bira | Maserati 4CLT/48 | Maserati 4CLT L4 c 1.5 | Pirelli | Enrico Platé |
| 22 | Felice Bonetto | Maserati Milano 4CLT/50 | Maserati 4CLT L4 c 1.5 | Pirelli | Scuderia Milano |
| 23 | Joe Kelly | Alta GP | Alta L4 c 1.5 | Dunlop | Privateer |
| 24 | Geoff Crossley | Alta GP | Alta L4 c 1.5 | Dunlop | Privateer |
| 26 | Raymond Mays | ERA D | ERA L6 c 1.5 | Dunlop | Privateer |