Overview

• The FIA reduced the allowable front-wing flex from 15 mm to 10 mm and enforced stricter static load tests for the Spanish Grand Prix weekend.
• McLaren arrived in Barcelona without new wing upgrades after debuting its compliant design in Imola, and both Oscar Piastri and Lando Norris led practice sessions under the revised rules.
• Ferrari and Red Bull fielded redesigned front-flap endplates and main wings, while Sauber and Alpine introduced overhauled underbodies to regain aerodynamic balance.
• The FIA is testing steel skid blocks instead of titanium during Friday practice to prevent sparks-induced grass fires, with a broader switch possible from the Canadian GP.
• Elevated track temperatures and altered aero balance are set to influence tire wear, making Barcelona a key performance checkpoint in the mid-season development race.