Christian Horner said that Red Bull F1 will not make a decision on its engine for '19 this month.GETTY IMAGES
Red Bull Formula 1 Team Principal Christian Horner said that the progress of Renault and Honda's respective engine upgrades ahead of June's Canadian Grand Prix "will dictate the team's decision" on '19, according to Nate Saunders of ESPN.com. Red Bull is in the final year of its contract with Renault and it "looks likely the pair will split," having seen its relationship "deteriorate" since the introduction of V6 turbo engines in '14. The only alternative is Honda, which supplies junior team Toro Rosso. Red Bull started formal discussions with the Japanese manufacturer after the Azerbaijan Grand Prix. Renault previously warned Red Bull it "would not budge" on its deadline of May but Horner "has other ideas." Horner: "There won't be a decision in May. I think potentially both engine suppliers are bringing an upgrade around Montreal so we wait and see with interest." Renault has not officially confirmed "when it will bring an upgraded spec" (ESPN.com, 5/20).
