Niki Lauda: 'Possible Mercedes will quit Formula 1'

Niki Lauda has admitted that it is "possible" Mercedes will quit Formula 1.

The team - along with Ferrari - is at loggerheads with Liberty Media over the plans for 2021, featuring different engine rules and a proposed budget cap.

Lauda told Wirtschaftswoche: "There is a limit for the top teams.

"It's possible that one or the other will get out if it goes in the wrong direction."

Mercedes has announced that it will join Formula E in 2019.

"Only three years ago I would not have given Formula E a chance," team boss Toto Wolff told Bild. "But times have changed."

However, he said F1 remains Mercedes's top ticket.

"Formula 1 is the only global platform that transports our brand," he said.

The current F1 season continues this weekend in Monaco.