Aston Martin’s nightmare: Honda owns up to power unit meltdown

Aston Martin engine supplier Honda has publicly conceded what the timing screens in Bahrain had already exposed – its 2026 F1 power unit is lacking both performance and reliability.

Across six bruising days of pre-season running, Aston Martin logged just 334 laps – the fewest of any team. Gremlins crept in early: an unspecified issue, a puzzling “data anomaly,” and then deeper mechanical setbacks.

A power unit failure sidelined the AMR26 for four hours midweek. A suspected technical fault pitched Lance Stroll into the gravel. A battery-related problem cut short Thursday’s running. Friday brought only six fragmented laps.

While performance was not the objective, the numbers were damning. Stroll’s best of 1m35.974s left Aston trailing by a country mile not only the established frontrunners but even new arrival Cadillac. At the sharp end, Ferrari’s benchmark was nearly four seconds quicker.

Chassis questions may linger around the Adrian Newey-designed AMR26 – but Honda’s words shifted the spotlight squarely onto the engine.

Honda’s Painful Admission

“Our main target during this week’s test was to build up mileage on the power unit, check the engine reliability and gather data,” Honda’s trackside general manager and chief engineer Shintaro Orihara stated.

“We collected data successfully; however, we didn’t achieve the accumulated mileage that we were targeting.”

The admission highlights a desperate race against time. The collaboration that was promised to challenge the established order is instead fighting a shortage of components and a fundamental lack of durability.

“On Thursday, we identified an issue in the power unit, and all of us have been uniting efforts to find a solution during our last day of testing,” Orihara continued.

“Overnight and today, HRC Sakura, the AMRTC in Silverstone and our crews in Bahrain worked together on a limited run plan, which was jointly agreed considering a shortage of parts.”

As the season opener looms, the atmosphere between Sakura and Silverstone is one of grim determination masked by a sense of urgency. The challenging pre-season period has left the project on life support before the first light has even turned green.

“It has been an enduring week, but we extend our thanks to the team for their support trackside and everyone working in Japan and the UK remotely,” the Japanese engineer concluded.

“Overall, we are not happy with our performance and our reliability at the moment. However, we are all looking for solutions together in Sakura, Milton Keynes and Silverstone.”

In the unforgiving new era of 2026 regulations, rivals are already circling. For Aston Martin and Honda, the clock is ticking – and the silence of the garage has rarely sounded so loud.

Read also: Honda issues sink Aston Martin’s final day of running in Bahrain

Keep up to date with all the F1 news via X and Facebook