The paddock rumour mill has picked its favourite storyline for 2026: Mercedes might just have the power unit to beat when the new rules land. And with Lewis Hamilton now in red, that inevitably prompts the question—did he back the wrong project?
Hamilton’s move from Brackley to Maranello was bold and early, agreed before the 2024 season had even begun. The bet was twofold: squeeze something meaningful from the final year of this rules cycle in 2025, or hit the ground running when F1 tears up the template in 2026. So far, the first part hasn’t swung his way. Ferrari have spent much of this season shadowing McLaren rather than stalking them. Charles Leclerc has kept the scoreboard moving with podiums; Hamilton’s side of the garage hasn’t found the same rhythm, and the win column remains empty in red.
What’s coming next is the real pivot point. The 2026 formula rips up the balance between internal combustion and electric deployment to a 50/50 split, with slimmer cars and very different energy management. In the first phase of any reset, power units tend to decide who gets to play at the front. We saw it with the turbo-hybrid dawn of 2014—Mercedes turned up with a rocket and rewrote the decade.
F1 TV’s Alex Jacques thinks history could rhyme. “The majority of people in the paddock expect… Mercedes to have created the class-of-the-field engine,” he told F1 Oversteer, noting that whispers around dyno numbers are hard to ignore, even if nothing’s certain until the cars run in Bahrain. If Brixworth has indeed nailed it, the works team won’t be the only beneficiary; Mercedes customers would dine out too. That includes McLaren, already the sharpest all-round package more often than not this year.
None of this condemns Ferrari to the chasing pack for long. The budget cap era forces convergence quicker than it used to—there’s simply less room to out-spend a deficit—and the sport’s development rate can erase early gaps at warp speed. As Jacques pointed out, dramatic resets tend to settle, and the lap-time spread should remain tight.
Still, the optics are juicy. Hamilton left the outfit that mastered the last big engine swing and may have timed his exit just as Mercedes gets its next one right. He’s committed to Ferrari into 2026, with a reported option for 2027. If Maranello hits the sweet spot on chassis efficiency and energy deployment, the narrative dies on the vine. If Mercedes turn up with another reference engine, the “what if” headlines write themselves.
Either way, the first start of 2026 won’t just be lights out for a new era—it’ll be the verdict on one of the biggest gambles of Hamilton’s career.
