Aston Martin’s Switch to Honda Was Its Own Decision, Says Toto Wolff

Aston Martin will become a Honda works team in 2026, ending its five‑year stint with Mercedes. Team principal Adrian Newey and owner Lawrence Stroll called it a strategic push for titles, and Mercedes boss Toto Wolff said the split was Aston Martin’s own decision.

Why it matters:

The power‑unit partnership defines a team’s performance ceiling. Switching to a works Honda engine gives Aston Martin full control over development, but also puts the onus on Honda to deliver reliability and pace comparable to the dominant Mercedes unit.

The details:

• Aston Martin has been a Mercedes customer since its 2021 return, using Mercedes‑spec power units through the Racing Point era.
• The team announced a conscious decision to become a works partner with Honda for 2026, aligning with Honda’s F1 return and Aramco sponsorship.
• Early 2026 testing exposed vibration and reliability problems with the new Honda unit, prompting Newey to prioritize fixing the issue before chasing performance.
• Newey says Honda must also start work on a 2027 engine, as a sizable power boost is required for the next regulation cycle.
• Wolff stressed the split was Aston Martin’s choice; Mercedes continues supplying Alpine, McLaren and Williams, while Honda’s partnership makes Aston Martin one of only two works teams alongside Audi for 2026.

What's next:

Honda’s 2026 unit will be developed aggressively this season, focusing on eliminating vibration and raising power. If reliability improves, Aston Martin could close the gap to Mercedes‑powered rivals and become a genuine title contender in the new era.