Saturday 10 October 2015 11:56, UK
Watch as Sky Sports F1's Martin Brundle explains why he feels recovering their relationship with Renault is now Red Bull's only option to remain in F1 next year.
Ferrari are thought to have followed the stance of Mercedes and decided against supplying the former champions next season.
That leaves Red Bull without a unit and Brundle thinks the only options left for the team are to walk away from the sport or rebuild bridges with Renault.
Click the video above to hear the thoughts of Martin Brundle.
