Red Bull and Renault have denied rumours the reigning world champions could split.
Together, after Sebastian Vettel won the last nine grands prix of 2013, Red Bull and Renault are now embroiled in a technical crisis after the new V6 'power unit' struggled to merely run in the rear of Adrian Newey's RB10.
It has triggered rumours Red Bull is on the lookout for a new engine supplier.
Reports have emerged that Cosworth, without a customer for the 2014 season, has nonetheless completed its turbo V6 design that will not be raced this year.
The wilder rumours indicate Red Bull could take over the project and run its own engines for 2015.
When asked about the split rumours, Renault Sport's Remi...
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