| Car manufacturers / 1955 | |||
| « 1954 | 1956 » |
| Car manufacturer | Races | Starts | Poles | Wins | Podia | F. laps | Pts | |
| 1 | Arzani-Volpini | 1 | ||||||
| 2 | Connaught | 5 | 4 | |||||
| 3 | Cooper | 1 | 1 | |||||
| 4 | Epperly | 1 | 1 | |||||
| 5 | Ewing | 1 | ||||||
| 6 | Ferrari | 32 | 27 | 1 | 1 | 9 | 33.999 | |
| 7 | Gordini | 18 | 15 | |||||
| 8 | HWM | 1 | ||||||
| 9 | Kurtis Kraft | 35 | 23 | 1 | 4 | 1 | 21 | |
| 10 | Kuzma | 5 | 4 | 3 | ||||
| 11 | Lancia | 11 | 9 | 1 | 1 | 8 | ||
| 12 | Lesovsky | 1 | ||||||
| 13 | Maserati | 52 | 49 | 3 | 1 | 23 | ||
| 14 | Mercedes | 24 | 23 | 4 | 5 | 10 | 5 | 79 |
| 15 | Pankratz | 1 | 1 | |||||
| 16 | Pawl | 1 | 1 | |||||
| 17 | Phillips | 1 | 1 | |||||
| 18 | Schroeder | 3 | 1 | |||||
| 19 | Scopa | 1 | ||||||
| 20 | Silnes | 1 | ||||||
| 21 | Stevens | 1 | 1 | 1 | ||||
| 22 | Templeton | 1 | ||||||
| 23 | Trevis | 2 | 2 | |||||
| 24 | Vanwall | 9 | 7 |