Honda Formula 1 boss Shintaro Orihara warned the situation with Aston Martin will not be much improved at the 2026 Miami Grand Prix.

Aston Martin and Honda's early troubles in the 2026 F1 season are well documented as their cars struggled to finish races due to massive vibrations affecting the drivers' well-being, not to mention the compromise on the performance of the AMR26.

Orihara, Honda's Trackside General Manager and Chief Engineer revealed some of the work that has been going on behind the scenes at Sakura over the April break following the Japanese Grand Prix.

Speaking in Honda's Miami Grand Prix preview, Oriahara said: "It has been a long but intense period between the races with lots of work happening in collaboration with the Aston Martin Aramco Formula One™ Team both in Japan and in the UK.

"The Japanese Grand Prix showed that the work is going in the right direction and helped us to find the motivation to keep pushing forward. After that race, we took the opportunity to keep one of the AMR26 cars on site for further static testing in Sakura for the first time, focusing our efforts on reducing the vibrations and thus increasing reliability.

Some countermeasures have been implemented

"We have made some progress allowing us to implement further countermeasures in Miami and later in the season," the Honda boss claimed. "Realistically, this progress will not have a visible impact on the power unit performance on track, so we shouldn't be expecting big jumps forward here."

Looking ahead to this weekend in Miami, Orihara said: "Miami is the first circuit on the 2026 calendar with lots of slow-speed corners. It is a unique track, having two long open-throttle sections and several slow-speed corners.

"This combination makes it interesting to find the car setting compromise. On the power unit side, it's about improving driveability through the slow speed sector, and optimizing energy management in this section is a key factor to maximize performance.

"Miami is also the first warm race weekend of the season, so it's paramount to keep the power unit temperatures under control under these new regulations.

"The Miami Grand Prix is a Sprint weekend, which means we only have one practice session—albeit 90 minutes—to optimize all of the data settings under the new regulations and define the best cooling specifications ahead of Sprint qualifying, which makes FP1 here very important," Orihara concluded.