As the 2025 Formula 1 season transitions to its European leg, the Emilia-Romagna Grand Prix at Imola marks a critical juncture for teams to introduce significant upgrades, aiming to shift the competitive balance.
With McLaren dominating and rivals desperate to close the gap, all but two teams – Williams and Sauber – have brought new parts to the Autodromo Internazionale Enzo e Dino Ferrari.
The bulk of the field have unveiled a range of aerodynamic and reliability-focused updates, each tailored to extract more performance from their machines on this demanding, high-downforce circuit.
Here is a comprehensive team-by-team account of the upgrades debuting at Imola, showcasing the technical ingenuity driving the 2025 season forward.
Front Runners Lead Development Race
McLaren arrives at Imola with a comprehensive upgrade package. The team has revised several components around the rear corner and suspension to improve aerodynamic flow and increase rear downforce. Additionally, a high-downforce rear wing and a more aggressive beam wing have been introduced specifically for Imola’s demands. To complement performance gains, McLaren has also made a minor tweak to the front suspension to enhance reliability.
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Ferrari has targeted flow efficiency with updates to the rear scoop geometry and winglet arrangement. These non-circuit-specific changes are intended to deliver localized aerodynamic improvements. For the high-downforce layout at Imola, Ferrari has reintroduced a rear wing and beam wing configuration from last season to offer more grip under low-traction conditions, expanding their setup flexibility.
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Red Bull’s updates focus on aerodynamic refinement. A reshaped engine cover and sidepod profile aim to boost overall efficiency through optimized radiator inlet geometry. Further aerodynamic fine-tuning comes from a revised rear suspension fairing and updates to the wheel bodywork ducts at the rear, all designed to tidy up airflow and extract greater performance from the RB21.
Mercedes has also delivered a well-rounded set of upgrades. All four front suspension fairings have been reprofiled to stabilize airflow to the rear of the car, improving floor load. The front wing has undergone element reshaping to better direct airflow downstream, while a subtle redesign of the engine cover enhances both rear wing performance and engine cooling.
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Midfield Teams Introduce Floor and Aero Enhancements
Aston Martin has implemented the most extensive upgrade packages to Imola. Revisions span across the halo region, floor body, floor fences, and floor edge, all aimed at improving underfloor airflow and increasing load. Updates also include a reworked diffuser shoulder and a redesigned coke bottle shape to work harmoniously with the new floor. A less aggressive beam wing setup has been introduced to reduce drag while maintaining efficiency.
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Alpine has focused on the car’s forward and rearward aerodynamics. A reprofiled front wing and flap are expected to generate better local downforce, while updates to the rear bodywork aim to streamline airflow delivery to the back of the car.
Haas has reworked much of its floor and rear suspension geometry. A modified floor contraction shape and slimmer floor edges are designed to channel cleaner air rearward. To complement this, the diffuser has been updated to accommodate the revised flow. Changes to the rear brake duct and suspension fairings aim to better manage tire wake and optimize aerodynamic load at the back of the VF-25.
Racing Bulls have made underfloor adjustments by reshaping the volume of the forward floor channels and repositioning the fences and floor edge winglets to increase downforce without disturbing downstream airflow. The sidepod undercut has been refined for better air movement to the rear, and a new chassis winglet aids in airflow management around the rear wing area.
Two Teams Hold Position
Williams and Sauber are the only teams not to bring updates to this round. While others seek to unlock new performance gains, these two outfits will run with existing specifications as the field intensifies its development arms race.
As the European campaign gets underway, Imola serves as a vital testbed for the season’s first major upgrades. With title contenders and midfield battlers alike investing heavily in development, the Italian circuit may offer early clues about the direction each team is heading in the months to come.
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