Christian Horner has cast fresh doubt over Red Bull's Formula One future beyond this year as their relationship with engine supplier Renault heads for the scrapheap
Christian Horner
Singapore: Christian Horner has cast fresh doubt over Red Bull's Formula One future beyond this year as their relationship with engine supplier Renault heads for the scrapheap.
Christian Horner
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Red Bull, powered by the French manufacturer, won four consecutive driver and constructors' championships between 2010 and 2013, but they have failed to win a race in over a year and have finished on the podium on just two occasions this term.
The British-based team have a contract with Renault for next year, but it appears unlikely their fractured partnership will last beyond this season.