Williams announce engine partnership extension with Mercedes

The engine deal between Williams and Mercedes spans back to the beginning of the turbo-hybrid era in 2014

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Williams will continue their engine partnership with Mercedes going into the new era of Formula 1‘s 2026 engine regulations after the pair signed a contract extension. 

The announcement will see the continuation of a longstanding partnership between the two entities, with the 2024 season marking Mercedes‘ 10th year as power unit supplier to Williams.

The extension of the engine deal takes the WilliamsMercedes partnership into 2026 and beyond, with the deal running until at least 2030.

“We have enjoyed a long-term partnership with Mercedes-Benz, and we are thrilled to extend this collaboration into the next era of Formula 1,” shared Williams team principal James Vowles.

“The expertise, support and technology that Mercedes brings to the table align perfectly with our team’s aspirations in the medium and long term.”

The 2023 F1 season was one of significant progress for Williams, as it improved upon its performance in previous years. The Grove-based team finished seventh in the Constructors’ Championship, with 28 points to its name — a notable improvement from its performance in 2022, which saw the team finish the season with just eight points total.

Vowles, who was a new addition to the team in 2023, appears to hope the partnership with Mercedes will prove promising in the team’s ambition to return to its former glory.

“This long-term agreement with Mercedes is a positive step and forms part of our objectives for the future, whilst we will still retain our design and manufacturing expertise and capabilities in-house,” commented Vowles.

Williams’ James Vowles and Logan Sargeant in conversation at the 2023 Bahrain GP | Williams F1 Team

Beyond its own works team, Mercedes also supply their engines for McLaren and Aston Martin. The Woking-based team announced a similar engine deal extension back in November last year, with Mercedes set to continue supplying engines for McLaren into 2030.

“We are delighted to confirm Williams Racing as the second customer team that we will supply for the 2026 power unit regulations,” stated Mercedes team principal Toto Wolff in a press release shared by the team.

“Since 2014, we have continued to build and develop our relationship with Williams. As the team continues to put the foundations in place to challenge at the front of the grid, we look forward to supporting them with our power unit supply.”

What are the regulations for 2026?

The 2026 season heralds a new era for F1, as the sport is set to introduce a new set of engine regulations. A shift will be made towards the use of 100 percent sustainable fuels, in a bid to bring the racing series one step closer to its goal of achieving carbon neutrality by 2030.

Alongside the use of sustainable fuel, the power of the MGU-K unit is to be tripled, increasing from 120kW to 350kW.

With the new engine regulations comes an increase in the number of engine manufacturers. Familiar faces such as Honda and Ford are set to return to the sport, whilst Audi – which has enjoyed significant success in other motoring series – will make its F1 debut.

Honda will power Aston Martin from 2026 with Ford and Red Bull partnering together for the first time.

Jasmine Hughes
Jasmine Hughes
Experienced in digital content creation, Jasmine Hughes has written for a number of online publications, joining Total Motorsport in 2024. She previously served as FormulaNerds' Formula E Editor, leading coverage of the 2023 Formula E season. She has been watching Formula 1 since the age of 4, after falling in love with Fernando Alonso's blue-yellow Renault R25.
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