January 2003 |
| 17 jan 2003 |  RM Auctions - Vintage Motor Cars in Arizona
|
| 21 - 26 jan 2003 | Palm Beach Cavallino Classic 2003 Miscellaneous Events, round CC |
February 2003 |
| 7 - 9 feb 2003 | RM Auctions - The Florida Collector Car Auction |
| 7 - 16 feb 2003 |  AutoRAI
2003 Autoshows & Salons, round RAI |
| 7 - 16 feb 2003 |  28e RétroMobile
2003 Autoshows & Salons, round RET |
| 22 - 23 feb 2003 | RM Auctions - J.C. Daniels Estate - Lincoln Collection |
March 2003 |
| 6 - 16 mar 2003 |  73. Salon international de l'auto
2003 Autoshows & Salons, round GEN |
| 7 - 9 mar 2003 | 8th annual Amelia Island Concours d'Elegance 2003 Miscellaneous Events, round AME |
| 8 mar 2003 | RM Auctions - Vintage Motor Cars at Amelia Island |
| 9 mar 2003 |  Foster's Australian Grand Prix
2003 FIA Formula One World Championship, round 01 |
| 15 mar 2003 | 51st Mobil 1 Twelve Hours of Sebring 2003 American Le Mans Series, round 01 |
| 23 mar 2003 |  Petronas Malaysian Grand Prix
2003 FIA Formula One World Championship, round 02 |
| 30 mar 2003 |  Campionata Italiano Gran Turismo
2003 Campionata Italiano Gran Turismo, round 01 |
April 2003 |
| 4 - 6 apr 2003 |  RM Auctions - Toronto International Spring Classic Car Auction
|
| 6 apr 2003 |  FIA GT Championship
2003 FIA GT Championship, round 01 |
| 6 apr 2003 |  Grande Prêmio Marlboro do Brasil
2003 FIA Formula One World Championship, round 03 |
| 7 - 12 apr 2003 | » Entrants Tour Auto |
| 12 apr 2003 | RM Auctions - JEM Museum Collection |
| 13 apr 2003 |  FIA Sportscar Championship
2003 FIA Sportscar Championship, round 01 |
| 13 apr 2003 | Campionata Italiano Gran Turismo 2003 Campionata Italiano Gran Turismo, round 02 |
| 20 apr 2003 |  Gran Premio Warsteiner di San Marino
2003 FIA Formula One World Championship, round 04 |
| 25 - 27 apr 2003 | RM Auctions - Michigan Spring Classic Car Auction |
| 25 - 27 apr 2003 | Concorso d'Eleganza Villa d'Este |
| 27 apr 2003 | FIA GT Championship 2003 FIA GT Championship, round 02 |
May 2003 |
| 4 may 2003 | Gran Premio Marlboro de España 2003 FIA Formula One World Championship, round 05 |
| 4 may 2003 | Essais Préliminaires des 24 Heures du Mans 2003 24 Heures du Mans, round PRE |
| 10 may 2003 |  FIA Sportscar Championship
2003 FIA Sportscar Championship, round 02 |
| 11 may 2003 | FIA GT Championship 2003 FIA GT Championship, round 03 |
| 11 may 2003 | Campionata Italiano Gran Turismo 2003 Campionata Italiano Gran Turismo, round 03 |
| 16 - 18 may 2003 | RM Auctions - Houston Classic |
| 18 may 2003 |  Grosser A1 Preis von Österreich
2003 FIA Formula One World Championship, round 06 |
| 22 - 25 may 2003 | Mille Miglia |
| 25 may 2003 |  FIA GT Championship
2003 FIA GT Championship, round 04 |
| 25 may 2003 | Campionata Italiano Gran Turismo 2003 Campionata Italiano Gran Turismo, round 04 |
June 2003 |
| 1 jun 2003 |  Grand Prix de Monaco
2003 FIA Formula One World Championship, round 07 |
| 8 jun 2003 | Campionata Italiano Gran Turismo 2003 Campionata Italiano Gran Turismo, round 05 |
| 14 - 15 jun 2003 | 24 Heures du Mans |
| 15 jun 2003 | Grand Prix Air Canada 2003 FIA Formula One World Championship, round 08 |
| 22 jun 2003 | Campionata Italiano Gran Turismo 2003 Campionata Italiano Gran Turismo, round 06 |
| 27 - 29 jun 2003 | 13e Italia a Zandvoort |
| 29 jun 2003 | Chevy Grand Prix of Atlanta 2003 American Le Mans Series, round 02 |
| 29 jun 2003 | Gran Premio Lotteria 2003 FIA Sportscar Championship, round 03 |
| 29 jun 2003 |  LG Super Racing Weekend
2003 FIA GT Championship, round 05 |
| 29 jun 2003 |  Warsteiner Grand Prix of Europe
2003 FIA Formula One World Championship, round 09 |
July 2003 |
| 6 jul 2003 | Mobil 1 Grand Prix de France 2003 FIA Formula One World Championship, round 10 |
| 11 - 13 jul 2003 | Goodwood Festival of Speed 2003 Miscellaneous Events, round FOS |
| 13 jul 2003 | Campionata Italiano Gran Turismo 2003 Campionata Italiano Gran Turismo, round 07 |
| 20 jul 2003 | FIA Sportscar Championship 2003 FIA Sportscar Championship, round 04 |
| 20 jul 2003 | Foster's British Grand Prix 2003 FIA Formula One World Championship, round 11 |
| 26 jul 2003 |  Proximus 24 Hours of Spa
2003 FIA GT Championship, round 06 |
| 27 jul 2003 | Infineon Grand Prix of Sonoma 2003 American Le Mans Series, round 03 |
August 2003 |
| 2 aug 2003 | RM Auctions - Vintage Motor Cars at Meadow Brook Hall |
| 3 aug 2003 | Le Grand Prix de Trois-Rivières 2003 American Le Mans Series, round 04 |
| 3 aug 2003 | Grosser Mobil 1 Preis von Deutschland 2003 FIA Formula One World Championship, round 12 |
| 7 - 10 aug 2003 | 31. AvD Oldtimer Grand Prix 2003 Miscellaneous Events, round OGP |
| 8 - 10 aug 2003 | RM Auctions - Richard and Linda Kughn's Private Collection and Madison Hardware - part I |
| 10 aug 2003 | FIA Sportscar Championship 2003 FIA Sportscar Championship, round 05 |
| 15 aug 2003 | 18th Concorso Italiano 2003 Miscellaneous Events, round CI |
| 15 - 17 aug 2003 | 30th Rolex Monterey Historic Automobile Races 2003 Miscellaneous Events, round MHR |
| 15 - 16 aug 2003 | RM Auctions - Monterey Sports & Classic Car Auction |
| 17 aug 2003 | Toronto Grand Prix of Mosport 2003 American Le Mans Series, round 05 |
| 17 aug 2003 | 53rd Pebble Beach Concours d'Elegance 2003 Autoshows & Salons, round PB |
| 24 aug 2003 | Road America 500 2003 American Le Mans Series, round 06 |
| 24 aug 2003 |  Marlboro Magyar Nagydíj
2003 FIA Formula One World Championship, round 13 |
| 31 aug 2003 | 1000 km de Spa 2003 FIA Sportscar Championship, round 06 |
September 2003 |
| 5 - 7 sep 2003 | Goodwood Revival Meeting 2003 Miscellaneous Events, round GWR |
| 7 sep 2003 | Fry's Electronics Sports Car Championships 2003 American Le Mans Series, round 07 |
| 7 sep 2003 |  FIA GT Championship
2003 FIA GT Championship, round 07 |
| 9 - 10 sep 2003 | RM Auctions - The Novi Classic Car Auction |
| 14 sep 2003 | Gran Premio Vodaphone d'Italia 2003 FIA Formula One World Championship, round 14 |
| 20 - 21 sep 2003 | RM Auctions - Carail Museum |
| 21 sep 2003 | FIA Sportscar Championship 2003 FIA Sportscar Championship, round 07 |
| 21 sep 2003 | FIA GT Championship 2003 FIA GT Championship, round 08 |
| 21 sep 2003 | Campionata Italiano Gran Turismo 2003 Campionata Italiano Gran Turismo, round 08 |
| 27 sep 2003 | Grand Prix Americas 2003 American Le Mans Series, round 08 |
| 28 sep 2003 | SAP United States Grand Prix 2003 FIA Formula One World Championship, round 15 |
October 2003 |
| 5 oct 2003 | FIA GT Championship 2003 FIA GT Championship, round 09 |
| 12 oct 2003 |  Fuji Television Japanese Grand Prix
2003 FIA Formula One World Championship, round 16 |
| 18 oct 2003 | Petit Le Mans 2003 American Le Mans Series, round 09 |
| 19 oct 2003 | FIA GT Championship 2003 FIA GT Championship, round 10 |
| 24 - 26 oct 2003 | RM Auctions - Toronto International Fall Classic Car Auction |
November 2003 |
| 21 - 23 nov 2003 | RM Auctions - Michigan International Fall Classic Car Auction |
| 21 - 23 nov 2003 | RM Auctions - Richard and Linda Kughn's Private Collection and Madison Hardware - part II |
December 2003 |
| 19 dec 2003 | Bonhams 10807 - Exceptional Ferrari Motor Cars and Automobilia to include the Lepeltier Collection |