Augusto Fernandez will debut Yamaha's V4-powered M1 as a wildcard entry at this weekend's San Marino Grand Prix.

The highly anticipated Yamaha V4-powered prototype was unveiled today at the Misano World Circuit Marco Simoncelli.

This weekend, the new V4-powered Yamaha M1 will be used at the San Marino Grand Prix by Yamaha's MotoGP Test Rider, Augusto Fernandez.

"We have taken on an ambitious project, developing a new V4 engine and a whole new bike, and it is particularly demanding when done simultaneously with the 2025 bike development," Yamaha's Motor Sports Development Division General Manager, Takahiro Sumi, said.

"Such a challenge comes with high stakes and pressure: it's the type of project that can only be done right when it's not just a 'team effort' but a 'company effort', and all involved have to give it 100%.

"From the start of the V4 project, there were many questions to be answered, and we are still in the development stage, but one thing is for certain: our goal is to return Yamaha to winning ways with an evidence‑based approach."

Yamaha YZR-M1 Project Leader, Kazuhiro Masuda, added: "The development of the V4-equipped prototype has progressed according to a structured, phased plan. Thus far, we have completed dyno testing, followed by track correlation, and this weekend, we are conducting 'stress tests' under real-life GP conditions.

"As for the next steps: this Monday we'll have the IRTA test with Fabio and Álex, aimed at expanding our data set. We are unable to disclose details regarding private test sessions, but we remain fully committed to the programme and are approaching each phase with the utmost diligence.

"We are applying a comprehensive and disciplined approach, ensuring no aspect is overlooked. At this stage, I'm pleased to report that the progress is in line with our expectations. If all goes well this weekend and on Monday, subsequent steps include further testing at Sepang and Valencia."