Daniel Ricciardo says he is in no rush to open talks with Red Bull over a new contract because he holds "a few cards" in the negotiations.
Felipe Massa is to retire from Formula One at the end of the current campaign - and he intends for it to be permanent this time.
Ferrari say they could quit Formula 1 if the sport's new owners Liberty Media continue to tinker with the sport's regulations.
Lewis Hamilton has been hailed by many of his Formula One rivals after wrapping up his fourth world title at Sunday's Mexico Grand Prix.
Lewis Hamilton has declared he's already looking for world title number five after clinching his fourth drivers' title at the Mexican Grand Prix.