Michelin has claimed it would be open to a tyre war with Pirelli in 2014 as the battle for a 2014 contract gets feisty.
Last week Pirelli head Paul Hembery said it would be "farcical" for F1 if Michelin joined the F1 grid in a tyre war, but Michelin boss Pascal Couasnon is open to the idea.
One hurdle the French supplier may face is a regulation that only one company can supply tyres to F1 teams at any one time, though with FIA President Jean Todt's apparent support that hurdle could be quickly overcome.
With Pirelli already having contracts signed with the majority of teams and Bernie Ecclestone, it seems the only way Michelin could return next year would be in a so-called tyre war with Pirelli.
Despite that Michelin is also open to the idea of becoming a sole tyre supplier, in a U-turn from a previous condition. Boss Couasnon said:
"We have changed one of our conditions," he told Le Figaro newspaper. "Now, we don't mind becoming the exclusive supplier.
"We are ready for it, as there is quite an interesting technical challenge."
Though a tyre war remains a preferred option.
"We have always said that we are interested in competition," he added.
And Couasnon admitted talks with FIA President Jean Todt has begun.
"We have sent them the same information as we have to the general public, so our position is known to all," he said.
Though talks with Ecclestone are yet to begin.
"I was surprised by these reports, but I'm starting to get used to it," Couasnon smiled.
"Two weeks ago, I read that Michelin planned to hold a press conference, but nothing happened. In Formula One, there are always a lot of rumours.
"I can confirm that I have not scheduled any meetings with Bernie Ecclestone. If negotiations were to begin, we would hold them with the FIA, Bernie Ecclestone and the teams."
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