2003 · TECHNICAL
2003 Technical Regulations
2003 re-banned launch control and various electronic-aid edge cases that had crept back in after 2001. Parc fermé conditions were introduced — after qualifying, cars went into parc fermé and could not be substantially modified, tightening the link between qualifying setup and race setup. An in-season engine-longevity rule was phased in, requiring engines to complete two race weekends without replacement — the seed of the engine-allocation framework that would dominate the 2000s.
Chapters
Parc fermé introduced
After qualifying the car entered parc fermé. Teams could not change setup (wing angle, suspension geometry, tyre pressures, brake compound) between qualifying and the race start. This hugely compressed strategy because quali lap and race simulation had to share the same chassis configuration. The parc fermé concept became permanent F1 regulation.
Key changes
- Parc fermé — locked setup between qualifying and race.
Last updated: 2026-04-24
This summary is editorial material prepared by F1pedia for general F1 audiences. It is not a legal reference. For binding rule text, consult the official FIA document.