Christian Horner has hinted Red Bull could be set for 'a very different ball game' in 2017 as it waits for engine supplier Renault to determine its own future in F1.

Champions between 2010 and 2013, Red Bull Racing and Renault have struggled to mount a challenge to Mercedes and, more recently Ferrari, under the current regulations, a dip in form that has created an uneasy rift between the two parties.

As it stands, Red Bull and Renault remain committed to work together for the 2016 season, but it is known the French firm is considering alternative avenues, which range from purchasing an existing team - thought to be Lotus - or withdrawing from the sport altogether.

Related Articles

For Horner, who has been a staunch critic of the current regulations, he says he remains focused on working with Renault for the remainder of 2015 and into 2016 to bring its power unit up to speed. However, though he remains coy on plans beyond, he admits there could be alternative plans brewing.

"Those are decisions that they have to make. It would hold a certain irony if they [Renault] buy back the team they sold. But as far as our position is concerned, we have a very clear agreement with Renault, which guarantees us priority status. Any of those scenarios requires having a competitive engine - and doesn't really matter based on the agreement that we have. [2017] could be a completely different ball game."

When asked whether Red Bull would consider an engine supply from a rival, notably Ferrari, Horner says there is no focus on that dilemma at this time.

"Obviously Red Bull Group had a relationship with Ferrari for many years as engine supplier for Toro Rosso. Sergio (Marchionne) made a generous offer without any details when he attended the Austrian Grand Prix - but right now our focus is on what we have at this point in time."