Ferrari could eventually find itself supplying Formula 1 power units exclusively to its own cars, with Cadillac preparing to become an independent engine manufacturer and questions emerging over the longer-term direction of Haas. Although losing both customer teams would represent a significant change for Maranello, a smaller engine supply programme could also offer an unexpected advantage: allowing the Scuderia to concentrate more closely on its own competitive ambitions.
The prospect raises an interesting question about Ferrari’s future in Formula 1. Would a reduction in customer commitments represent a setback for its power unit operation, or could it help the Italian manufacturer focus on returning to championship-winning form?
Why Ferrari could lose Cadillac as an F1 engine customer
Cadillac entered Formula 1 in 2026 using Ferrari power units, but the American manufacturer’s ambitions extend beyond competing as a customer team. Its longer-term project includes developing and producing an engine of its own, with the original intention of making the transition as early as the 2027 season.
That timetable has since changed. The technical demands created by Formula 1’s revised power unit regulations, particularly the altered balance between internal combustion and electrical power, have led Cadillac to extend its Ferrari supply arrangement into 2027.
The extension gives the American team additional time before introducing its own engine. However, it does not alter the fundamental direction of the project. Cadillac intends to become an independent power unit manufacturer, meaning its relationship with Ferrari is not expected to continue indefinitely.
For the Scuderia, the eventual departure of Cadillac would reduce the number of teams using its engines. The more important question is whether this would be an isolated change or part of a wider restructuring of its Formula 1 customer relationships.
Could Haas follow Cadillac away from Ferrari power units?
Haas represents another potentially significant part of the picture. The American team, led by Ayao Komatsu, has developed increasingly close ties with Toyota Gazoo Racing, creating uncertainty about how its technical partnerships might evolve in the coming years.
Toyota’s growing involvement raises the possibility that its ambitions extend beyond a conventional sponsorship arrangement. That does not establish that Haas will replace Ferrari as its power unit supplier, but it introduces another potential direction for the American team’s future.
The existing Ferrari-Haas relationship has nevertheless remained important despite the increased involvement of the Japanese manufacturer. Ayao Komatsu has previously addressed how Toyota’s arrival affects Haas’s partnership with Ferrari, highlighting the different areas of technical cooperation involved.
Should Haas eventually choose another engine supplier, Ferrari could find itself without any customer teams. Unlike Cadillac’s stated intention to develop its own power unit, however, a future departure by Haas remains a possibility rather than an established outcome.
Ferrari’s history offers an interesting comparison
The possibility of Ferrari building power units exclusively for its own Formula 1 cars brings an earlier period of the team’s history into focus. Between 1993 and 2005, Maranello experienced one of its most successful eras, a period that included an extraordinary sequence of championship victories.
Ferrari won six consecutive Constructors’ Championships between 1999 and 2004, establishing a level of sustained success that remains central to the team’s modern history. That achievement makes the suggestion of a more concentrated engine operation particularly appealing when considering how Ferrari might approach its future.
The argument is not simply about reducing the number of cars running Ferrari engines. It concerns whether concentrating technical resources, development priorities and organisational attention on the factory team could prove beneficial.
For a manufacturer whose ultimate objective is to win the Formula 1 World Championship with its own cars, the prospect of simplifying its customer programme deserves consideration.
Could fewer F1 engine customers help Ferrari return to winning?
Ferrari’s central challenge remains improving the performance of its own Formula 1 package. Producing a competitive power unit is essential to that objective, particularly as the team seeks to challenge the strongest manufacturers under the current regulations.
The importance of this technical challenge is already evident in the development of the SF-26, with Ferrari’s 2026 power unit performance and engineering decisions demonstrating how closely engine development is connected to the overall competitiveness of the car.
Operating without customers could, in principle, allow Ferrari to place even greater emphasis on the requirements of its factory team. The potential benefit would be a narrower focus on the power unit characteristics and development priorities most relevant to Maranello.
However, the possibility of gaining a competitive advantage from fewer supply agreements remains an argument rather than an established technical outcome. The eventual effect would depend on how Ferrari organised its engine programme and used the resources available to it.
For supporters assessing the broader competitive picture, the Scuderia’s results relative to other constructors can also be followed through the Ferrari versus F1 rivals statistics comparison.
A different Formula 1 future for Ferrari
Cadillac’s intention to manufacture its own power unit means Ferrari is already facing a future in which one of its customer relationships will eventually end. The growing connection between Haas and Toyota introduces a second possibility, although there is no equivalent certainty over the American team’s engine arrangements.
Together, these developments raise the prospect of Ferrari returning to a programme centred entirely on its two factory cars. Rather than necessarily viewing that outcome as a disadvantage, Maranello could regard it as an opportunity to reassess where its technical attention should be directed.
The comparison with Ferrari’s championship-winning past is an attractive one, even if supplying fewer teams cannot by itself guarantee better results. Ultimately, the value of such a change would be measured by whether it helped the Scuderia build a more competitive Formula 1 car and challenge consistently for victories and world titles.
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