After the Japanese Grand Prix, Honda retained an Aston Martin AMR26 at its Sakura factory for unprecedented full-car dyno testing to combat persistent vibration issues plaguing the team. Amid ongoing partnership challenges, updates targeting chassis integration aim for improvements at the Miami Grand Prix.
Building on vibration woes exposed at Suzuka—where Friday practice showed progress but issues resurfaced for poor qualifying—Honda and Aston Martin advanced countermeasures post-race. The chassis amplifies engine vibrations, causing battery failures, reliability issues, and driver discomfort, as seen in Fernando Alonso's China retirement.
Andy Cowell shifted from team principal to liaison between Silverstone and Sakura. Honda F1 trackside GM Shintaro Orihara highlighted intensive collaboration: “A long but intense period... The Japanese GP showed work in the right direction.” For the first time, a complete AMR26 underwent static dyno testing at Sakura with Aston Martin engineers present, following prior monocoque tests.
Orihara added: “We kept one AMR26 on site for further static testing... focusing on reducing vibrations and increasing reliability.” Miami upgrades will enhance engine-chassis harmony and slow-corner drivability, though major power boosts await the ADUO hardware. Software tweaks offer interim gains, while the sprint and heat test cooling under new rules.
The AMR26 remains the grid's least potent power unit, but these efforts signal progress in the Aston Martin-Honda partnership.