Honda is charging back into Formula 1 in 2026 as Aston Martin’s exclusive works engine partner, and they’re playing it bold – pushing the development of their next-generation V6 turbo-hybrid power unit right to the wire.
With new regulations looming, the Japanese powerhouse is opting to refine its engine until the “very last moment” before homologation next year.
This isn’t a casual stroll to the finish line but rather a calculated sprint to deliver a competitive edge to Aston Martin.
Leading the engineering charge is Tetushi Kakuda of Honda Racing Corporation (HRC), who has shed light on why the manufacturer is embracing a tight timeline and what it means for their partnership with Team Silverstone.
A Late Start Fuels a Relentless Push
Honda’s F1 journey has been a rollercoaster of sorts – exiting F1 in 2021, but supplying Red Bull Powertrains, and now roaring back with Aston Martin after a late U-turn in the 2026 tender process.
That delayed decision left them out of sync with Red Bull’s in-house plans but opened the door to its new alliance with Lawrence Stroll’s ambitious outfit. But Kakuda admitted that the clock is ticking louder because of it.
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“We are aiming to submit the homologation in February next year – since we had a slightly late start, we want to push forward until the very last moment,” he told Motorsport.com.
Progress? Tricky to pin down precisely, but Kakuda is optimistic.
“It’s difficult to say exactly what percentage of progress we have made, but I believe we have reached a considerable stage.”
Late or not, Honda’s not cutting corners—they’re chasing perfection.
Tackling the 2026 Engine Revolution
The 2026 rules have rewritten the F1 playbook, demanding a near-even split between the internal combustion engine and electric systems, with roughly 450bhp of the 1000bhp total coming from the electric motor.
It’s a seismic shift, and Honda’s digging deep to adapt.
“Regarding how we handle high-speed combustion, fuel-related factors also come into play,” Kakuda explained.
“The environment is changing drastically, and things will not work the same way as before.
“However, for a gasoline engine, the eternal goal is to burn fuel as quickly as possible. We are currently building an environment to achieve something similar.”
This isn’t just tweaking an old design – it’s a ground-up rethink for Honda to balance power and efficiency in a brave new hybrid world.
Global Teamwork and a Newey Boost
Honda’s splitting the workload across continents, with development humming in Sakura, Japan, and California, and with maintenance and operations shifting to their Milton Keynes base in the UK.
But coordination with Aston Martin is key, especially with homologation deadlines looming.
“There are key timing points when both parties must finalise major components for homologation,” Kakuda explained.
“We are coordinating with them, discussing when we each want to make our final decisions, and setting the schedule accordingly.”
Adding firepower to this effort is Adrian Newey, Aston Martin’s new Managing Technical Partner, who joined the team this week fresh off his two-decade stint with Red Bull.
With Newey’s genius in the mix, Honda’s got a dream collaborator to fine-tune its late-blooming engine.
Racing Against Time for Glory
Honda’s strategy is a high-wire act—maximizing development time risks hiccups, but it could also yield a power unit that hits the grid running.
After supporting Red Bull’s championship engines post-2021, they’re now all-in on Aston Martin, aiming to reclaim their F1 legacy.
Kakuda’s confidence suggests they’re on track, even if the finish line’s uncomfortably close.
As 2026 nears, Honda’s betting big on this last-minute push, hoping to ignite Aston Martin’s charge toward the front of the pack.
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