Daniel Ricciardo has insisted that he is still not in a hurry to sign a new contract for 2019.
Having entered Formula 1 as a Red Bull junior, the Australian is now an undisputed top driver and looking at a potential move to Ferrari or Mercedes.
However, Red Bull wants an answer by the summer.
"The next contract I sign must be 'the contract'," Ricciardo told El Confidencial.
"I can't say what I'll be doing in five years, so that's why this next one has to be perfect for me."
Red Bull has warned that it can pull Carlos Sainz back from Renault to replace Ricciardo for 2019.
Yet Ricciardo insists: "I'm not in a hurry. The team wants to have it done by the summer, but if the team tells me we can wait until October, then I can wait."
The season continues next weekend with the Monaco Grand Prix.