The 2003 FIA Sportscar Championship Estoril was the first race for the 2003 FIA Sportscar Championship season held at Autódromo do Estoril and ran a distance of two hours, thirty minutes. It took place on April 13, 2003.

Official results Class winners in bold. Cars failing to complete 75% of winner's distance marked as Not Classified (NC).

Pos Class No Team Drivers Chassis Tyre Laps Engine 1 SR1 16 Pescarolo Sport Jean-Christophe Boullion Stéphane Sarrazin Courage C60 68 Peugeot A32 3.2L Turbo V6 2 SR1 5 RN Motorsport John Nielsen Hayanari Shimoda DBA4 03S 68 Zytek ZG348 3.4L V8 3 SR1 1 Racing for Holland Jan Lammers John Bosch Dome S101 67 Judd GV4 4.0L V10 4 SR1 8 Automotive Durango SRL Michele Rugolo Leonardo Maddalena Durango LMP1 65 Judd GV4 4.0L V10 5 SR2 52 Lucchini Engineering Mirko Savoldi Piergiuseppe Peroni Lucchini SR2002 64 Nissan (AER) VQL 3.0L V6 6 SR1 2 Racing for Holland Beppe Gabbiani Felipe Ortiz Dome S101 63 Judd GV4 4.0L V10 7 SR2 55 GP Racing Fabio Mancini Gianni Collini Massimo Saccomanno Lucchini SR2001 63 Alfa Romeo 3.0L V6 8 SR2 54 SCI Paul Daniels Ranieri Randaccio Lucchini SR2000 61 Alfa Romeo 3.0L V6 9 SR1 12 Gianfranco Trombetti Alex Caffi Gianfranco Trombetti Promec PJ119 46 Peugeot A32 3.2L Turbo V6 10 SR2 61 Team Jota Sam Hignett John Stack Pilbeam MP84 46 Nissan (AER) VQL 3.0L V6 NC SR2 99 PiR Bruneau Pierre Bruneau Marc Rostan Pilbeam MP84 27 Nissan 3.0L V6 DNF SR1 6 Taurus Sports Racing Justin Keen Christian Vann Lola B2K/10 0 Judd GV4 4.0L V10

Statistics Pole Position - #16 Pescarolo Sport - 1:48.721 Distance - 284.376 km Average Speed - 113.504 km/h

References