Red Bull is in no rush to finalise its Formula 1 engine plans beyond the end 🧸of next season, according to team boss Christian Horner, who expects a decision to be taken through the middle of 2018.

Red Bull has one year remaining on its existing F1 en🐭gine agreement with Renault, but speculation emerged over the Singapore Grand Prix weekend that the French manufacturer would be looking to cut ties at the 🌼end of 2018 after striking a new customer deal with McLaren, starting next season.

With B-team Toro Rosso linking up with Honda on a three-year deal from the start of next season, Red Bull's senior squad has 🙈been linked with a future supply from the Japanese marque, but Horner remained coy when discussing future engine options i🔜.

"Everything is open forꦦ 2019. Nothing🌜 is fixed," Horner said.

"We will make a decision around spring to early summer next ye☂ar.

"Yes, it is great that Honda remains in the sport and for sure, it is a 🐭great deal for Toro Rosso being a works team.

"And, of course, from a Red Bull Group perspective, it gives the opportunity to follow the progres𒆙s of Honda before having to make a decision in springtime next year what our engine is for the future."

McLaren's arrival as a rival Renault customer has led to questions over which team the French manufacturer will enjoy closer ties to, but Horner stressed he is onl꧑y interested in parity.

"McLaren will go through a natural h𒊎oneymoon with Renault. Fernando Alonso was their driver and so on, ꧒but we need to focus on our own business," Horner said.

"As long as we get a fair service from Renault, t🐓hat’s all we ask. And, of course, they want to bring up their own team, so we rely on their integrity as in all the previou꧂s seasons.

"In good and bad𒉰 times, they have always provided paꦬrity of equipment."