Sauber couldn’t have asked for a better start to June, celebrating back-to-back points finishes in Spain and Canada with Nico Hulkenberg. While both driver and team deserve credit for executing well and capitalizing on opportunities, it’s clear that the technical department played a vital role. The upgrade package introduced in Barcelona significantly improved the performance of the C45—and its impact goes beyond short-term gains.
The Barcelona upgrades
Since last autumn, Sauber has been engaged in an intense development programme that has gradually brought its cars back into contention with the midfield. A major step forward came with the introduction of the Barcelona updates. The Swiss team invested in a significant floor redesign, reworked across all areas from the flow conditioners to the diffuser. Externally, the updated floor edge showed a clear evolution from the previous specification.
This new floor was designed to work in tandem with the updated bodywork, also introduced in Barcelona, highlighting a package conceived with a holistic approach. The undercut of the sidepods now has a more undulating profile, indicating a new airflow management strategy both below and above the car, as well as a different approach to shielding the floor from turbulence generated by the front wheels. Nico Hulkenberg immediately celebrated an outstanding fifth place in Catalunya—benefiting from Antonelli’s retirement and a penalty for Verstappen—but the result still reflected the car’s ability to consistently run in the points, as confirmed two weeks later in Canada.
The value of ongoing development
The Barcelona package is just the latest in a long line of updates that Sauber has rolled out since late last season. In recent months alone, new components debuted in Suzuka for the diffuser and floor, followed by further tweaks in Jeddah, while in Miami the team introduced revised fairings for the front suspension elements. One might question the logic of a backmarker investing so heavily just ahead of the biggest regulation change in 25 years. However, the results speak for themselves: under the guidance of Mattia Binotto and Jonathan Wheatley, Sauber has pulled away from last place and is now just two points behind a resurgent Aston Martin in eighth. These positions not only secure greater prize money but also ensure continued support from Audi’s management, just months ahead of the four-ring brand’s official entry.
Mattia Binotto has also declared that the team’s goal is to fight for the title by 2030. To achieve that, a steady trajectory is essential—delaying investment in the hope of a major leap with new regulations is not a viable strategy. The importance of development goes far beyond aerodynamic surfaces and design choices; it strengthens internal processes from simulation to production. Bringing upgrades to the track helps verify the correlation between CFD, wind tunnel, and real-world performance while validating the car concept itself—something that transcends regulation sets. Even McLaren’s team principal Andrea Stella has said that solving MCL39’s drivability issues is helping them understand how to design better cars in the future. Sauber appears to have fully embraced this philosophy, sending out some highly encouraging signals.
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