2003 Formula 3 Euro Series

The 2003 Formula 3 Euro Series season was the first championship year of Europe's premier Formula Three series. The championship consisted of ten rounds – each with two races – held at a variety of European circuits. Each weekend consisted of 1 hour and 30 minutes of free practice on Friday – in either one or two sessions – and two 30-minute qualifying sessions. This was followed by a c.110 km race on Saturday and a c.80 km race on Sunday. Each qualifying session awarded one bonus point for pole position and each race awarded points for the top eight finishers, with ten points per win. It commenced on April 26, 2003 at Hockenheimring and ended on October 26 at Circuit de Nevers Magny-Cours.

Driver changes

 * Entering Formula 3 Euro Series
 * Simon Abadie: French Formula Three Championship (Saulnier Racing) → Saulnier Racing
 * Nicolas Armindo: Championnat de France Formula Renault 2.0 & Eurocup Formula Renault 2.0 (ASM Elf) → Saulnier Racing
 * Bernhard Auinger: German Formula Three Championship (Opel Team BSR) → Superfund TME
 * Philipp Baron: Debut → Drumel Motorsport
 * Ryan Briscoe: German Formula Three Championship (Prema Powerteam) & International Formula 3000 (Coca-Cola Nordic Racing) → Prema Powerteam
 * César Campaniço: German Formula Three Championship (Prema Powerteam) → Swiss Racing Team
 * Fabio Carbone: British Formula 3 Championship (Fortec Motorsport) → Signature Plus
 * Adam Carroll: British Formula 3 National Class (Sweeney Racing) → Opel Team KMS
 * Robert Doornbos: German Formula Three Championship (Team Ghinzani) → Team Ghinzani
 * Maro Engel: Formula BMW ADAC (Eifelland Racing) → Opel Team KMS
 * Timo Glock: German Formula Three Championship (Opel Team KMS) → Opel Team KMS
 * Lucas di Grassi: Formula Renault 2.0 Brazil (G Force Motorsport) → Prema Powerteam
 * Jamie Green: Formula Renault 2.0 UK (Fortec Motorsport) → ASM
 * Jan Heylen: British Formula Ford Championship (Duckhams) → Kolles
 * Katsuyuki Hiranaka: All-Japan Formula Three Championship (TOM'S) → Prema Powerteam
 * Christian Klien: Formula Renault 2.0 Germany & Eurocup Formula Renault 2.0 (JD Motorsport) → Mücke Motorsport
 * Robert Kubica: Formula Renault 2.0 Italy & Eurocup Formula Renault 2.0 (RC Motorsport) → Prema Powerteam
 * Nicolas Lapierre: Eurocup Formula Renault 2.0 (Graff Racing) & French Formula Three Championship (Signature) → Signature Plus
 * Marcel Lasée: German Formula Three Championship (Mücke Motorsport) → Swiss Racing Team
 * Dong-Wook Lee: Asian Formula Three Championship (E-Rain) → Drumel Motorsport
 * Richard Lietz: German Formula Three Championship (Palfinger F3 Racing) → HBR Motorsport
 * James Manderson: Australian Formula 3 (Bronte Rundle Motorsport) → Swiss Racing Team
 * Patrice Manopoulos: Debut → LD Autosport
 * Alexandros Margaritis: Formula Renault 2.0 Germany & Formula BMW ADAC (Weigl Motorsport) → MB Racing Performance
 * Álvaro Parente: Spanish Formula Three Championship (Racing Engineering) → Team Ghinzani
 * Olivier Pla: French Formula Three Championship (ASM) → ASM
 * Alexandre Prémat: Championnat de France Formula Renault 2.0 & Eurocup Formula Renault 2.0 (ASM Elf) → ASM
 * Harold Primat: British Formula 3 National Class (Diamond Racing) → Saulnier Racing
 * Stefano Proetto: German Formula Three Championship (Team Kolles Racing & Swiss Racing Team) → LD Autosport
 * Daniel la Rosa: Formula Volkswagen Germany (???) → MB Racing Performance
 * Nico Rosberg: Formula BMW ADAC (VIVA Racing) → Team Rosberg
 * Bruno Spengler: Formula Renault 2.0 Germany & Eurocup Formula Renault 2.0 (Jenzer Motorsport) → ASM
 * Gilles Tinguely: German Formula Three Championship (Swiss Racing Team) → Swiss Racing Team
 * Claudio Torre: Formula BMW ADAC (Springbok Motorsport) → HBR Motorsport
 * Hendrik Vieth: Formula Renault 2.0 Germany & Eurocup Formula Renault 2.0 (SL Formula Racing) → Opel Team KMS
 * Markus Winkelhock: German Formula Three Championship (Mücke Motorsport) → Mücke Motorsport
 * Sakon Yamamoto: German Formula Three Championship (GM Motorsport, Team Kolles Racing) → Superfund TME
 * Andreas Zuber: Formula Renault 2.0 Germany (Motopark Oschersleben) → Team Rosberg
 * Charles Zwolsman Jr.: German Formula Three Championship (Team Kolles Racing) → Kolles

Midseason changes

 * César Campaniço joined Signature Plus for the Magny-Cours round
 * Simon Abadie joined LD Autosport from the Nürburgring round onwards.
 * Philipp Baron joined Team Ghinzani from the Pau round onwards.
 * Stefano Proetto joined Swiss Racing Team from the second Hockenheimring round onwards.

Calendar

 * The series supported the Deutsche Tourenwagen Masters at seven rounds. It was also a part of the Grand Prix Aurore at two French meetings, while at the third, it was the headline event of the Pau Grand Prix.

Drivers Standings

 * Points are awarded as follows:

† — Drivers did not finish the race, but were classified as they completed over 90% of the race distance.

Rookie Cup
Rookie drivers are only eligible for the Rookie Cup title if they have not previously competed in a national or international Formula 3 championship.