A proposed Formula 1 partnership between Porsche and Red Bull from the 2026 season would not be materialising after the former confirmed the end of talks.

According to reports, the German manufacturer had wanted to own 50% share in the current world constructors' championship leader.

Ahead of the Italian Grand Prix, Porsche hinted that was the stumbling block to finalise the deal.

"In the course of the last few months, Dr. Ing. h.c. F. Porsche AG and Red Bull GmbH have held talks on the possibility of Porsche's entry into Formula 1.

"The two companies have now jointly come to the conclusion that these talks will no longer be continued.

"The premise was always that a partnership would be based on an equal footing, which would include not only an engine partnership but also the team. This could not be achieved.

"With the finalised rule changes, the racing series nevertheless remains an attractive environment for Porsche, which will continue to be monitored," read an official statement.

It is unclear if Porsche would call off their plan to enter Formula 1 completely, having confirmed their intention to begin racing in 2026 along with sister company Audi earlier this year.