BBC Sport is reporting that more than half of Aston Martin's massive Formula 1 performance deficit is caused by chassis issues, not the much-maligned Honda engine partnership that has dominated headlines. F1 correspondent Andrew Benson revealed the information came from "a very senior and knowledgeable figure" during the Japanese Grand Prix weekend, with GPS data from other teams confirming Aston Martin's speed deficits across different track sections align with chassis limitations rather than power unit problems.
Aston Martin currently sits 3.6 seconds off the pace in qualifying, making them about 2.3 seconds away from Q3 qualification. Team principal Mike Krack estimates the chassis alone makes them "maybe the fifth best team" with potential for top-10 qualifying on chassis performance alone. As Benson noted, "put a Mercedes engine in the car, and it would be about where Alpine or Haas are."
The chassis struggles stem from Aston Martin's troubled development timeline. The team effectively started over when Adrian Newey arrived in March 2024, with delayed wind tunnel access until April creating a compressed development program. The resulting AMR25 is overweight and particularly poor in high-speed corners.
While Honda's severe vibration issues have prevented Fernando Alonso from completing race distances in Australia and China, the chassis bears greater responsibility for the overall pace deficit. Even the source of Honda's vibrations remains unclear—whether they're intrinsic to the engine or caused by how it's mounted to the troubled chassis.
Both Aston Martin and Honda face significant development work as F1's April break provides crucial time to address their multi-layered problems before the Miami Grand Prix in May.