HWM (Hersham Walton Motors)
founded by John Heath (1914-1956) - George Abecassis (1913-1991)
| Year | Pos | Points | Entered | Raced | Best | QP1 | Poles | P1 | P2 | P3 | Podiums | FLaps |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1955 | - | - | 1 | - | - | - | - | - | - | - | - | - |
| 1954 | - | - | 1 | 1 | - | - | - | - | - | - | - | - |
| 1953 | - | - | 18 | 18 | 8 | - | - | - | - | - | - | - |
| 1952 | - | - | 26 | 22 | 5 | - | - | - | - | - | - | - |
| 1951 | - | - | 2 | 2 | 8 | - | - | - | - | - | - | - |
| - | 48 | 43 | 5 | - | - | - | - | - | - | - |