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Six engine manufacturers have registered for the start of Formula 1’s next power unit rules cycle, which begins in 2026 and runs until the end of the 20230 season.
This represents an increase of two compared to the current list of suppliers, with Audi and Ford-backed Red Bull Powertrains joining Ferrari, Mercedes, Honda and Alpine (Renault) – a list that has not changed since the 2015 Formula 1 season.
There is also the possibility of a seventh manufacturer joining mid-cycle, as the Andretti-Cadillac project, which has received FIA approval to join the grid but now has to negotiate commercial terms with Formula 1, has a commitment from Cadillac-owning brand General Motors to provide an engine from 2028.
But for now, here’s the full list of the ten existing teams and the suppliers they’re partnering with for 2026:
Red Bull – Red Bull Engines
Red Bull found itself in a tough spot when Honda announced its decision to leave Formula 1 at the end of the 2021 season, a decision it has since reversed, with a supply deal covering the 2022-25 seasons to help Red Bull find a long-term replacement.
The end result was Red Bull creating an in-house engine division, Red Bull Powertrains, with its own power unit set to debut in 2026. It has since brought on Ford as a partner for the project.
Mercedes
The Mercedes factory team is officially split into two bases: the chassis facility in Brackley, while the engine is produced by Mercedes-AMG High Performance Powertrains in Brixworth.
The Mercedes name has been officially given to Formula 1 engines since the 1994 season with the Sauber team, although it had been involved the previous season when the “Mercedes-Benz Concept” badge appeared on Sauber’s 1993 cars as it worked with the team and the British manufacturer Ilmor which it bought into that year’s programme.
Ferrari
Ferrari is arguably the only true Formula 1 team with every part of its operations based at its Maranello base – which also houses its road car division and the World Endurance Championship hypercar project.
McLaren – Mercedes
McLaren’s second engine arrangement with Mercedes may be very different to the one that secured it three drivers’ titles and one constructors’ championship during its years as a force in Formula 1 in the late 1990s and early 2000s, but the team’s reunion in 2021 coincides with the team’s most competitive seasons during the turbo-hybrid era.
It announced an extension of that deal at the end of the 2023 season, which means McLaren will use Mercedes power units until at least the end of 2030.
Aston Martin – Honda
Despite announcing its withdrawal after the 2021 season, Honda has never really left Formula 1. Red Bull has continued to use its engines under the Red Bull Powertrains banner ever since, with Honda effectively becoming a supplier, while the Honda name has reverted to the “engine builder” name for Red Bull and AlphaTauri for 2023.
The company has also registered as a manufacturer with the FIA for the upcoming Formula 1 engine regulations, and in May last year a programme was announced giving Aston Martin (currently supplied by Mercedes) exclusive use of its engine for 2026.
Aston Martin Performance Technologies CEO Martin Whitmarsh hopes the deal will be “one of the final pieces of the jigsaw puzzle” for Formula 1’s long-term plan.
Alpine (Renault)
No surprises here – the Renault F1 team will use the engine that is currently classified as belonging to ‘Alpine Racing’ on the list of registered power unit suppliers for 2026.
Enstone endured a very brief period without a Renault engine – in 2015, it switched to Mercedes, before Renault bought the beleaguered team back – but that was the only anomaly since Benetton and Renault teamed up in 1995.
Williams – Mercedes
Williams announced on January 8 that it would extend its partnership with Mercedes to include the 2026 rules cycle.
This is the longest-running relationship between Williams and an engine manufacturer, and began in 2014 at the start of the turbo hybrid era, with Williams finishing third in the constructors’ championship in succession in the first two seasons.
Visa Cash RB – RBPT App
The yet-to-be-named sister team will be equipped with the same Red Bull Powertrains-developed package that the first team uses from 2026.
Audi
Audi will join Formula 1 for the first time in 2026 and is currently preparing for this program, which includes the acquisition of a majority stake in the Sauber team, which will be known for the next two seasons as the Stake Formula 1 Team.
It has set itself the ambitious goal of being in a position to fight for victory in its first three years in the championship using its own power unit, which is being developed at its Neuburg facility in Germany.
Haas – Ferrari
Haas announced a new deal with Ferrari – which it has used since entering Formula 1 in 2016 – on July 16, extending the deal until the end of 2028.
Team president Ayao Komatsu said the “continued stability” provided by the deal would be crucial as the new rules era enters.
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