Renault and Red Bull have both described as "speculation" reports that they will be ending their engine partnership after next season. The pair won four consecutive drivers’ and constructors’ titles together at the turn of the decade but the relationship has been fractious since a new 1.6 litre V6 turbo hybrid power unit was introduced in 2014. Renault’s engines have proved less competitive than those of rivals Mercedes and Ferrari, bringing the pair to the brink of a divorce that was only averted when Red Bull failed to find an alternative supply. The team currently run Renault engines under Tag Heuer branding. "We will have a TAG Heuer Renault-provided engine and...
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