Just a few years ago the energy drink-owned outfit risked being left entirely without horsepower in Formula 1, but now, Horner says that Red Bull can choose between Renault and Honda for 2019.
"Luckily we have options," he told Auto Motor und Sport.
"Renault wishes to continue working with us, and we have a front row seat with regards to Honda. We can observe how they develop," Horner said, referring to the new partnership between the Japanese supplier and Red Bull junior team Toro Rosso.
Horner said that Red Bull needs to make its decision by "the summer break".