Franz Tost doesn't believe AlphaTauri or Red Bull would receive a competitive engine should their deal with Honda fall through and they are forced to reunite with Renault.
The two teams are heading into their final season with Honda as the Japanese manufacturer have already stated they will withdraw from Formula 1. As a result an agreement has been reached with Honda that would see the two outfits take over development of the engine.
However that move is dependant on an engine freeze being put into place in 2022, with a vote set for February 11. Should the vote fail then both AlphaTauri and Red Bull will have to look elsewhere, with Tost stating that a return to Renault would be a step back.
“Renault have a works team," Tost told Motorsport-Magazine.com. "I can hardly imagine we would get a power unit with which we could compete successfully in races.
“You have to assume Red Bull and [Dietrich] Mateschitz have different demands. They want to compete in the world championship. They need the appropriate power unit material.”
While talks regarding an engine freeze are heading for a conclusion one way or another, Tost knows that Mercedes, Ferrari and Renault are in no rush to resolve the issue.
"This is the usual game of the manufacturers who are in the lead,” Tost added. “Even if they keep saying they agree, basically they don’t agree and they just want to buy time.”