Audi have appointed former Ferrari team principal Mattia Binotto as the head of their Formula One project, parting company with Andreas Seidl.

Made chief executive officer 19 months ago, Seidl was tasked with overseeing Sauber's progress ahead of Audi taking over the team for 2026.

However, with Sauber the only team on the grid yet to earn a point this season, the German manufacturer has opted to conduct a major shake-up.

Olivier Hoffmann, chairman of the team's board of directors, has joined Seidl in departing.

Binotto, who left Ferrari at the end of the 2022 season after the Scuderia's title charge faded in disappointing fashion, will officially take on the role of chief operating and chief technical officer from August 1.

Gernot Dollner, who has taken over Hoffmann's former position, said of Binotto: "With his extensive experience of more than 25 years in F1, he will undoubtedly be able to make a decisive contribution for Audi.

"Our aim is to bring the entire F1 project up to F1 speed by means of clear management structures, defined responsibilities, reduced interfaces, and efficient decision-making processes.

"For this purpose, the team must be able to act independently and quickly."

Binotto had been part of Ferrari's team since 1995, contributing to eight constructors' championship triumphs before becoming team principal in 2019.

Frederic Vasseur is to become Ferrari's new team principal in January after the departure of Mattia Binotto, the team announced on Tuesday.

Vasseur's newly vacant role as Alfa Romeo/Sauber's managing director is then expected to be filled by McLaren boss Andreas Seidl, ahead of Sauber's switch to becoming the Audi factory team in 2026.

Having been with Sauber in the team's various forms since 2017, Vasseur will join a Ferrari outfit that won four races in the 2022 season but remained well off the pace in challenging Red Bull and Max Verstappen for the constructors' and drivers' championships.

Ferrari announced in November that Binotto would step down at the end of the year, allowing Vasseur to join and reunite with Charles Leclerc.

He was in charge of Alfa Romeo during Leclerc's rookie F1 season in 2018.

Vasseur will be aiming to end Ferrari's long title drought, having not won a constructors' or drivers' championship since 2008.

Ferrari are still among the most prestigious and successful Formula One teams despite their long wait for more silverware, and Vasseur is thrilled to be joining such a historic constructor.

"I am truly delighted and honoured to take over the leadership of Scuderia Ferrari as Team Principal," Vasseur said in Ferrari's announcement.

"As someone who has always held a lifelong passion for motorsport, Ferrari has always represented the very pinnacle of the racing world to me."

Benedetto Vigna, Ferrari's CEO, added: "We are delighted to welcome Fred Vasseur to Ferrari as our Team Principal.

"Throughout his career he has successfully combined his technical strengths as a trained engineer with a consistent ability to bring out the best in his drivers and teams.

"This approach and his leadership are what we need to push Ferrari forward with renewed energy."

Vasseur's move comes in the wake of Jost Capito leaving his role as Williams team principal, having finished bottom of the 2022 constructors' standings.

Audi and Sauber have announced their partnership in Formula One, which will see the team race as a factory entrant from 2026.

Confirmation of Audi's move into Formula One had been announced earlier this year and it was long expected that the Swiss team would become the home for the German car giant.

Wednesday's announcement sets out the future for the Sauber team, who see their branding deal with Alfa Romeo expire at the end of 2023 and will have two further seasons with Ferrari as an engine supplier before the unification with Audi.

Formula One's engine supplier regulations have been adapted from 2026 onwards, encouraging new entrants to come forward, and Audi is among them alongside sister company Porsche, who are looking for a partnership of their own on the grid.

Finn Rausing, the chairman of Sauber Holding, said in a statement: "Audi is the best partner for the Sauber Group. It is clear that both companies share the same values and vision. We are looking forward to achieving our common goals with a strong and successful partnership."

Two of the world's most recognisable car brands – Audi and Porsche – have plans to join Formula One.

It is said that the two brands, who are the Volkswagen Group's biggest income generators, have had a keen interest for a while now and have been waiting for F1's engine regulations to move in a more eco-friendly direction.

These changes are reportedly set to come into effect in 2026, when it is expected that Porsche will form an alliance with Red Bull and compete under the team name of Red Bull-Porsche.

Audi, on the other hand, are seeking to buy out an existing team, and have had talks with Sauber, Williams, Aston Martin and McLaren.

Speaking at an event in Wolfsburg, where VW is based, company chief executive Herbert Diess said when it came down to it, entering F1 would simply generate more money than not entering.

"You just run out of arguments [against it]," he said.

Last year, Porsche Motorsport vice president Fritz Enzinger revealed that the company was again considering their future in the sport, as long as the engine requirements met a certain standard.

With F1's new engines to run on fully sustainable fuels – which was non-negotiable for the VW Group – it is now closer than ever to becoming a reality.