1908 Grand Prix season Other Grands Prix Other Grands Prix

| Name_ | Circuit | Date_ | Winning_driver | Winning_constructor | Report |
|---|---|---|---|---|---|
| Targa Florio | Madonie | 18 May | Vincenzo Trucco | Isotta-Fraschini | Report |
| St. Petersburg - Moscow | Public roads | 1 June | Victor Hémery | Benz | Report |
| Coppa Florio | Bologna | 6 September | Felice Nazzaro | Fiat | Report |
| Targa Bologna | Bologna | 7 September | Jean Porporato | Berliet | Report |
| Vanderbilt Cup | Long Island | 24 October | George Robertson | Locomobile | Report |
| American Grand Prize | Savannah | 26 November | Louis Wagner | Fiat | Report |