Physical legality checking

In Simple Terms

During races, F1 officials measure cars to make sure they match the approved designs. Because it's impossible to manufacture parts perfectly, they allow small measurements differences of up to 3mm. For certain critical parts like wings and the floor, they're even stricter with position tolerances of just 2mm.

• Cars are physically measured during competition to verify they conform to their approved CAD designs
• Manufacturing tolerance of ±3mm is permitted for most components
• Critical parts (front wing, rear wing, exhaust, floor, tail) have stricter positional tolerance of ±2mm
• Front and rear sections have additional Z-axis tolerance of ±2mm for vertical measurements