Ross Brawn has threatened to leave Mercedes if he is not assured his job as team boss is safe.
After denying he has already decided to quit, but confirmed talks are taking place, Brawn made clear on Sunday he will only stay beyond 2013 if Mercedes agrees he will have a clear role at the very top of the Brackley based team.
"I think we need a very clear definition of who is in charge and obviously I need the motivation to carry on," the 58-year-old Briton said at Suzuka.
"Any successful F1 team has to have a senior reference and that's the big question. We need to make sure if I'm to remain here that I'm the reference," Brawn told the British broadcaster Sky.
Full Story »