Overview

• Red Bull’s RB21 debuts a five-part upgrade at Spa, featuring redesigned front wing elements to boost downforce through revised camber and incidence.
• The Milton Keynes squad has merged its sidepod inlets into a single, wider opening and reshaped the engine cover to harmonise airflow towards the floor for better cooling.
• Revised front suspension fairings with added camber and trimmed rear brake-duct bodywork are targeted to improve pressure distribution and mechanical grip.
• Ferrari has submitted new rear suspension geometry via re-optimised wishbone fairings and introduced a circuit-specific low-downforce rear wing for Spa’s long straights.
• These updates mark the last major 2025 developments as top teams prepare to redirect technical resources to next season’s regulation overhaul.