A-T-S (Automobili Turismo e Sport)
founded by Carlo Chiti (1924-1994)
| Driver | Year | Pos | Points | Entered | Raced | Best | QP1 | Poles | P1 | P2 | P3 | Podiums | FLaps |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mario Araujo de Cabral | 1964 | - | - | 1 | 1 | - | - | - | - | - | - | - | - |
| Phil Hill | 1963 | - | - | 9 | 5 | 11 | - | - | - | - | - | - | - |
| Giancarlo Baghetti | 1963 | - | - | 9 | 5 | 15 | - | - | - | - | - | - | - |
| - | 19 | 11 | 11 | - | - | - | - | - | - | - |