Is Red Bull’s engine already facing problems ahead of the 2026 season? Mark Rushbrook, Global Director of Ford Racing, has offered some insight into the delicate phase of development as the new power unit prepares for its debut.
The Red Bull F1 project, developed in collaboration with Ford, is entering a critical stage, and Rushbrook emphasized that the path toward the new technical era will inevitably involve obstacles. He was keen to temper any early assessments of how the engine compares to the competition, noting that the ultimate judge will always be the track. He said that, in terms of their position relative to other teams, “we don’t know. We believe the team is working extremely hard. But until you actually see it on track with a real racing car and understand where everyone else is, we don’t know exactly where we are compared to them.”
His remarks were deliberately cautious, reflecting the understanding that progress in F1 is rarely linear. “We know there is a strong likelihood that challenges will arise along the way. There will be issues to solve. That’s motorsport at the very top of the pyramid,” Rushbrook added.
Red Bull F1 and Ford: project largely on schedule
Overall, Ford remains fully committed to the collaboration with Red Bull Powertrains. Rushbrook said, “We are fully engaged with Red Bull to be present, to support, and to do everything necessary to overcome these challenges.” When asked whether the project is generally on track, he responded plainly: “More or less, yes. There are always challenges, right? Challenges will continue for all five years we run these power units.”
The importance of reliability
Reliability is a key concern for the future of the Red Bull F1-Ford partnership, and Rushbrook explained that it goes far beyond simple mechanical robustness. “There’s mechanical reliability, if you look at it in terms of producing power with fuel, which is one part. But there’s also calibration reliability and the ability to optimize that power,” he said.
He also highlighted the extreme complexity of the new hybrid systems. “It’s very complex to recover energy, store it in the battery, and then release it again. If something goes wrong with the calibration or behaves in a way the mechanics don’t expect, it could induce a mechanical error,” Rushbrook explained. Finally, he emphasized that factory data can never tell the full story. “We might see things on track that we haven’t seen in the data, from what we’ve observed inside the Milton Keynes buildings—but who knows what we will actually see when the cars are on track?”
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