Ferrari is ready to go “all-in” for the 2026 season, which, thanks to a profound regulatory change, could allow the team to return to the top after several challenging years. To achieve this, the Scuderia is working collectively, with its various departments collaborating to produce an overall fast car capable of consistently competing at the front.
A concrete example is the 2026 power unit, which, as widely known, has been designed to be innovative and to allow Diego Tondi’s aerodynamic team to maximize certain concepts aimed at reducing the car’s drag—a crucial factor in a generation of cars powered 50% by electric energy. The 678 engine is therefore expected to feature reduced radiant masses and miniaturized accessories.
Innovation and prospects
The work was conceived to support more efficient aerodynamic shapes, resulting in a project vital for the future. This highly confidential project aims to recover what could be the advantage Mercedes and Red Bull might have due to a technical solution capable of raising the compression ratio of their engines from 16:1 (static) to 18:1 in use, providing an estimated 13 hp increase.
For this reason, Maranello decided, despite initial skepticism regarding reliability, to develop a power unit with a steel alloy cylinder head instead of an aluminum one. These doubts, after months of work, were gradually overcome by the team led by Guido Di Paola, Head of F1 ICE Concept and Design, who identified the necessary solutions to validate the project.
The advantages of steel, despite its greater weight compared to aluminum, allow for higher pressures and temperatures in the combustion chamber—an essential factor for achieving the set performance targets.
A forced choice?
With these bold decisions, the Scuderia could therefore challenge Mercedes’ ingenious power unit and achieve comparable power values. Beyond tangible effects, the choice of cylinder head material was also influenced by practical reasons, related to the development time of the new unit and the delays a potential switch to aluminum would have caused.
Such an alternative would have required months of study, with uncertain results, and would have only been realized mid-season. In the Power Unit Department, it was therefore preferred to follow the path laid out by Zimmermann and Schmidt, evaluating and discarding the “Plan B” only on paper, without testing a single-cylinder prototype with an aluminum alloy cylinder head.
The decision to continue on the chosen path was thus dictated by practical motivations, but also by the desire to validate the work done in the preceding months. After proper evaluations, this decision seems to have given the Prancing Horse’s engine specialists a sense of cautious optimism for the future, providing the necessary guarantees for reliability and the confidence that they can hit their power targets—thanks in part to the synergy with Shell in developing new synthetic fuels.
Ferrari’s technical gamble on a steel-headed engine marks a definitive “no turning back” moment for the Scuderia. By prioritizing high-combustion performance and aerodynamic integration over traditional weight-saving measures, Maranello is signaling its intent to lead the next era of Formula 1. Whether this robust engineering approach provides the silver bullet needed to topple Mercedes remains to be seen, but the internal confidence at the Reparto Corse suggests that Ferrari is finally building a foundation solid enough to support its championship ambitions.
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