So, when does the FIA have to decide neither or not a new tire supplier has to fill the spot of Bridgestone...????? I mean, Bridgestone is leaving F1... (but do we know really???)... like Petronas said it would not be involved in F1 a few days later they sign up with Mercedes GP

And what would happen if FIA doesn't find any new tire supplier at all??? Will the cars drive on whatever they like or will they use another new technology like floating???
If the announcement is, say in December of this year... can then that new tire supplier (Michelin or any other) be able to build an appropriate F1 tire on time??? And what about the teams...? They have to adapt their aerodynamics to the new tire specifications (we all remember why Renault was doing so badly after Michelin left and they changed to Bridgestone...)
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