The winners of this year’s Mille Miglia come from Argentina, the Sieleki and Hervas pairing, second the previous year behind Cané and Galliani. The number 14, suitably a 1923 T23 Brescia, eventually triumphed with a points tally of 13,902. Second was the all-Italian teaming of Vesco and Vesco, starting number 137, in their 1934 Fiat 508 S Coppa. This team also stood on the winner’s podium in 2002, however in third place. In 2003 this place was occupied by another Italian team; Aghem and Conti in a Alfa Romeo 6C 1500 MMS.
The Top 50 the Mille Miglia 2003:
| Pos. | Nº | Team | Car | Nat. | Class | Points |
| 1 | 14 | SIELECKI / HERVAS | BUGATTI T 23 BRESCIA (1923) | ARG | C | 13902 |
| 2 | 137 | VESCO / VESCO | FIAT 508 S COPPA ORO (1934) | I | D | 12366 |
| 3 | 7 | AGHEM / CONTI | ALFA ROMEO 6C 1500 MMS (1928) | I | C | 12346 |
| 4 | 128 | SUCARI / CELADA | MASERATI 4 CS 100 (1934) | ARG | D | 11445 |
| 5 | 47 | SANCHEZ-ZINNY / X | ALFA ROMEO 6C 1750 GS (1930) | ARG | C | 10747 |
| 6 | 61 | BRESCIANI / BRESCIANI | BUGATTI T 40 (1929) | I | C | 10539 |
| 7 | 210 | GIANSANTE / FERRACIN | PORSCHE 550 A RS (1957) | I | E | 10497 |
| 8 | 70 | GABURRI / GABURRI | OM 665 TT (1928) | I | C | 10494 |
| 9 | 158 | GNUTTI / SAVOLDI | FERRARI 225 S (1953) | I | E | 10363 |
| 10 | 32 | PERLETTI / SALVINELLI | FIAT 514 COPPA ALPI (1930) | I | C | 10197 |
| 11 | 92 | SCALISE / CLARAMUNT | ASTON MARTIN LE MANS (1933) | ARG | D | 9874 |
| 12 | 201 | CROUL / RAIMONDI | MASERATI A6 GCS (1953) | USA | E | 9430 |
| 13 | 235 | SISTI / BERNINI | HEALEY SILVERSTONE (1950) | I | E | 9327 |
| 14 | 169 | DANIELI / BOLLERO | CISITALIA 202 S MM (1947) | I | E | 9013 |
| 15 | 82 | MAIFRINI / COMINOTTI | ASTON MARTIN INTERNATIONAL (1932) | I | D | 8388 |
| 16 | 117 | GOLDSCHMIDT / GOLDSCHMIDT | FIAT 508 S (1935) | ARG | D | 8343 |
| 17 | 222 | CIBALDI / TARENGHI | GILCO 1100 SPORT (1948) | I | E | 7445 |
| 18 | 95 | BONI / BARZIZA | BMW 328 (1937) | I | D | 7393 |
| 19 | 84 | SUCARI / PEREZ | FRAZER NASH TT (1934) | ARG | D | 7264 |
| 20 | 341 | BOCELLI / X | PANHARD 750 SPORT (1950) | I | E | 6953 |
| 21 | 21 | FRANCIOSI / DE PAOLI | ASTON MARTIN INTERNATIONAL (1930) | I | C | 6813 |
| 22 | 18 | FELLONI / FELLONI | BUGATTI T 35 A (1925) | I | C | 6806 |
| 23 | 155 | GNUTTI / AIARDI | PORSCHE 550 RS (1955) | I | E | 6570 |
| 24 | 330 | PAOLETTI / PAOLETTI | ERMINI 357 SPORT (1955) | I | E | 6523 |
| 25 | 176 | MASINI / MASINI | NARDI DANESE 1500 SPORT (1947) | I | E | 6498 |
| 26 | 308 | VOLPI / TAMBURINI | ERMINI 1100 SPORT (1952) | I | E | 6426 |
| 27 | 94 | LOTTERI / DONIDA | FIAT 508 S COPPA ORO (1934) | I | D | 6352 |
| 28 | 243 | AIME / MINERVA | STANGA 750 SPORT (1956) | I | E | 6352 |
| 29 | 211 | ARCIERI / GRIGOLO | FIAT 1100 TV (1955) | I | E | 6315 |
| 30 | 79 | DANIELI / SALERI | FIAT 508 S COPPA ORO (1934) | I | D | 6303 |
| 31 | 69 | CAVAGNA / CAVAGNA | BUGATTI T 37 A (1930) | I | C | 6150 |
| 32 | 157 | IMBERT / IMBERT | FERRARI 750 MONZA (1955) | I | E | 6088 |
| 33 | 249 | CANALE / ANSANELLI | MASERATI A6 GCS (1954) | I | E | 5942 |
| 34 | 251 | CRISTOFOLETTI / LOCATI | OSCA MT4 1100 (1953) | I | E | 5822 |
| 35 | 291 | BORDOGNA / BORDOGNA | CISITALIA 202 SC (1947) | I | E | 5816 |
| 36 | 81 | BERTOLI / GHIDONI | BMW 328 (1938) | I | D | 5752 |
| 37 | 190 | BONTEMPI / LUCCHESI | TRIUMPH TR 3 (1957) | I | E | 5744 |
| 38 | 206 | CHERUBINI / CHERUBINI | ABARTH 750 ZAGATO (1957) | I | E | 5656 |
| 39 | 238 | MENSI / AMBROSINI | PORSCHE 550 RS (1955) | I | E | 5537 |
| 40 | 78 | SAVOIA / MARCEGAGLIA | ALFA ROMEO 6C 2300 B (1937) | I | D | 5431 |
| 41 | 160 | GNUTTI / GNUTTI | FERRARI 340 A (1954) | I | E | 5407 |
| 42 | 91 | BRECHT / VOIT | INVICTA 4.5 S (1932) | D | D | 5337 |
| 43 | 250 | SEEKAMP / SEEKAMP | VERITAS RS 2000 (1947) | D | E | 5314 |
| 44 | 149 | PEDRINI / GIULIANI | FIAT 500 A (1940) | I | D | 5301 |
| 45 | 109 | CAVAGNA / PASOTTI | FIAT 514 MM (1931) | I | D | 5245 |
| 46 | 231 | CANALE / MARANZA | ALFA ROMEO CONRERO 2000 SPORT (1953) | I | E | 5244 |
| 47 | 245 | BRUNORI / BRUNORI | NARDI DANESE 750 SPORT (1955) | I | E | 5113 |
| 48 | 80 | BONOMI / BONOMI | ASTON MARTIN MK II (1934) | I | D | 5039 |
| 49 | 4 | VON PEIN / SELLERBERG | MERCEDES 710 SS (1929) | D | C | 4969 |
| 50 | 143 | VINCOLI / GHIBELLI | SS JAGUAR 100 (1938) | I | D | 4951 |
Text: J.Philip Rathgen
Photos: Mille Miglia