The bosses of Formula 1 rivals Mercedes and Renault have confirmed they are willing to co-operate on non-competitive matters, amid mounting speculation that Mercedes could yet supply engines to the Red Bull F1 team.
Mercedes and Renault-Nissan have been engaged in a joint venture partnership in road cars for almost six years, co-developing vehicles, opening factories and sharing resources together.
However, Renault, which currently has a contract to supply Red Bull with engines in Formula 1 until the end of 2016, is looking to either buy its own team or exit the sport at the end of this season. This follows constant criticism from Red Bull regarding the performance of its engines.
"We either move out or we move on - and that is the subject of ongoing discussions," said Ghosn, who added that if his firm stayed in F1, it would only supply customer engines again once it had established its own standalone team.
The decision to run its own team or leave the sport is said to hinge on whether Renault is awarded extra prize money that is afforded to teams that have historically supported F1.