2003 FIA Sportscar Championship
The 2003 FIA Sportscar Championship was the third season of FIA Sportscar Championship, an auto racing series regulated by the Fédération Internationale de l'Automobile and organized by the International Racing Series Ltd. It was the seventh and final season of the series dating back to the International Sports Racing Series of 1997. The series featured sports prototypes divided into two categories, SR1 and SR2, and awarded championships for drivers, constructors, and teams in both classes. The series began on 13 April 2003 and ended on 21 September 2003 after seven races in Europe.
Jan Lammers of the Netherlands won his second consecutive drivers championship for his Racing for Holland Dome outfit, sharing the championship with countryman John Bosch. Mirko Savolid and Pierguiseppe Peroni also earned a repeat drivers championship in the SR2 category for Lucchini Engineering after winning in five of seven events.
won the FIA Sportscar Championship for Drivers for the second consecutive year
Schedule
The 2003 calendar for the championship featured seven events, six in the traditional 2-hour 30-minute format plus the addition of the 1000 km Spa run in conjunction with the British GT Championship, a return to the 1000 km format last utilized in 1988. Circuito do Estoril began the season in the first visit to Portugal for the series, while Autodromo Nazionale Monza and Donington Park both returned to the series with events held in conjunction with the International Formula 3000 series; Donington would also serve as the first race in the championship to be held at night. The EuroSpeedway Lausitz would share its event with the Champ Car World Series, while Circuit Paul Armagnac and Motopark Oschersleben were also new events to the series.| Rnd | Race | Circuit | Date |
| 1 | Estoril 2 Hours 30 Minutes |  Autódromo do Estoril, Estoril, Portugal | 13 April |
| 2 | German 500 |  EuroSpeedway Lausitz, Klettwitz, Germany | 10 May |
| 3 | 44th Gran Premio Lotteria di Monza |  Autodromo Nazionale di Monza, Monza, Italy | 29 June |
| 4 | Oschersleben 2 Hours 30 Minutes | Motopark Oschersleben, Oschersleben, Germany | 20 July |
| 5 | European Race Weekend |  Donington Park, North West Leicestershire, United Kingdom | 10 August |
| 6 | 1000 km Spa |  Circuit de Spa-Francorchamps, Stavelot, Belgium | 31 August |
| 7 | Nogaro 2 Hours 30 Minutes |  Circuit Paul Armagnac, Nogaro, France | 21 September |
Entries
SR1
SR2
All SR2 competitors used Avon tyres.| Entrant | Car | Engine | Drivers | Rounds | |
| Lucchini Engineering | Lucchini SR2002 | Nissan 3.0 L V6 | 52 | Mirko Savoldi | All |
| Lucchini Engineering | Lucchini SR2002 | Nissan 3.0 L V6 | 52 | Pieuguiseppe Peroni | All |
| Lucchini Engineering | Lucchini SR2002 | Nissan 3.0 L V6 | 52 | Filippo Francioni | 6 |
| Ranieri Randaccio | Lucchini SR2000 | Alfa Romeo 3.0 L V6 | 54 | Ranieri Randaccio | 1, 3 |
| Ranieri Randaccio | Lucchini SR2000 | Alfa Romeo 3.0 L V6 | 54 | Paul Daniels | 1 |
| Ranieri Randaccio | Lucchini SR2000 | Alfa Romeo 3.0 L V6 | 54 | Jacopo Sebastiani | 3 |
| GP Racing | Lucchini SR2001 | Alfa Romeo 3.0 L V6 | 55 | Fabio Mancini | 1–6 |
| GP Racing | Lucchini SR2001 | Alfa Romeo 3.0 L V6 | 55 | Gianni Collini | 1–6 |
| GP Racing | Lucchini SR2001 | Alfa Romeo 3.0 L V6 | 55 | Massimo Saccomanno | 1–6 |
| Team Jota | Pilbeam MP84 | Nissan 3.0 L V6 | 61 | Sam Hignett | 1–6 |
| Team Jota | Pilbeam MP84 | Nissan 3.0 L V6 | 61 | John Stack | 1–6 |
| Team Jota | Pilbeam MP84 | Nissan 3.0 L V6 | 61 | Nigel Taylor | 6 |
| Team Sovereign | Rapier 6 | Nissan 3.0 L V6 | 62 | Ian Flux | 5, 7 |
| Team Sovereign | Rapier 6 | Nissan 3.0 L V6 | 62 | Mike Millard | 5, 7 |
 Palmyr | Lucchnini SR2000 | Alfa Romeo 3.0 L V6 | 63 | Christophe Ricard | 5–7 |
| Palmyr | Lucchnini SR2000 | Alfa Romeo 3.0 L V6 | 63 | Philippe Favre | 5–7 |
| Pierre Bruneau | Pilbeam MP84 | Peugeot 3.0 L V6 | 99 | Pierre Bruneau | All |
| Pierre Bruneau | Pilbeam MP84 | Peugeot 3.0 L V6 | 99 | Marc Rostan | All |
Results and standings
Race results
Points were awarded to the top eight finishers in each category. Entries were required to complete 60% of the race distance in order to be classified as a finisher and earn points. Drivers were required to complete 20% of the total race distance for their car to earn points. Teams scored points for only their highest finishing entry. For the 1000 km Spa points were also awarded to the top eight in each category at half distance.| Event | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th |
| Races | 10 | 8 | 6 | 5 | 4 | 3 | 2 | 1 |