Article C2.3
Fundamental Dimensions
Technical Regulations
Article C2.3
Fundamental Dimensions
Chapter: ARTICLE C2: CONVENTIONS AND FUNDAMENTAL DIMENSIONS
In Simple Terms
F1 cars have strict width limits - no part of the car (except wheels and tires) can extend more than 950mm from the centerline of the car. Additionally, the distance from the front wheel to the rear wheel (wheelbase) must not exceed 3400mm. These measurements ensure all cars stay within similar dimensional boundaries.
- Maximum width: 950mm from the car's centerline (excluding wheels and tires)
- Maximum wheelbase: 3400mm from front axle to rear axle
- Measurements taken at 'Legality Setup' - the official baseline configuration
- Wheels, tires, and parts directly attached to rims are exempt from width restrictions
Official FIA Text
Except for the tyres, Wheel Rims, and parts attached to the Wheel Rims, no part of the car may lie more than 950mm from the plane Y=0 at Legality Setup. The wheelbase distance must be less than or equal to 3400mm.
fundamental dimensionscar widthwheelbase950mm3400mm
2026 Season Regulations