Esteban Gutierrez insists he made the decision to break off talks with Sauber over staying with the team in 2015.

In the space of five days between the United States and Brazilian grands prix, Sauber announced that Marcus Ericsson and Felipe Nasr would be its race drivers next season, replacing Gutierrez and Adrian Sutil. Speaking ahead of his final race with the team, Gutierrez said it was his decision not to continue with talks to stay at Sauber.

"The negotiations didn't go in the way that I felt was a good direction for my career," Gutierrez said. "So it got decided not to go forward with the negotiation, to change and to take a risky path.

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"[The decision] was mine not to push. I could comply with the things that they were asking for but it was just not my feeling here and anymore in the terms that they were offering, so I didn't push it forward."

And Gutierrez admitted that his next move needed to be to another F1 team otherwise it was likely to spell the end of his career in the category.

"Yeah, I think so. I've been working on a few things in parallel to the negotiations that went on with Sauber. We have different options but it's things that are not yet guaranteed. I'm still working on them. I have two or three options here so I'm in a position where now I need to very soon choose a direction where I want to go.

"I'm looking to be a reserve or test driver in a good team, in a top team with a plan for the future."