Article 2.1
Legality Volumes or Surfaces Defined by CAD Models
Technical Regulations
Article 2.1
Legality Volumes or Surfaces Defined by CAD Models
Chapter: APPENDIX C2: REGULATION VOLUMES
In Simple Terms
F1 cars must be built to exact specifications defined by official computer models (CAD files) provided by the FIA. These digital blueprints show the precise shapes and sizes allowed for different car parts, and teams download them to ensure their designs are legal.
- All legal car dimensions are defined exclusively by official CAD (computer-aided design) models
- Teams must download these specifications from the FIA's CAD Portal
- Car parts must be positioned at specific coordinates as outlined in the CAD data
- Unless stated otherwise, legality is determined by matching these digital specifications
Official FIA Text
The legality volumes and surfaces listed are defined exclusively by CAD data and available to download from the FIA's CAD Portal. Unless otherwise stated, volumes must be positioned with origin at given coordinates.
cad modelslegality volumesfia specificationscar dimensionstechnical regulations
2026 Season Regulations