The Italian manufacturer announced the step on Friday before the Grand Prix in the Belgian Spa-Francorchamps.
Quickly previously, Audi had formally made his prepare for the begin of Formula 1 for the 2026 period.
It is expected that the German car supplier will certainly quickly take control of most of the shares in the Swiss Sauber auto racing stable.
Alfa Romeo had actually begun functioning with Sauber for the 2018 season as well as only expanded another year a few weeks earlier.
Nonetheless, the racing team obtains its engines from Ferrari.
It is open for the time being whether this will certainly continue to be so past the end of the partnership with Alfa Romeo till 2025.
When a totally brand-new engine policies apply, Audi does not desire to begin in the auto racing series until 2026.