Sauber team principal Monisha Kaltenborn says Formula One is heading for a sport with four or five teams as she feels her team - as well as Lotus and Force India - are being forced out.

A meeting between team bosses and Bernie Ecclestone on Saturday in the Interlagos paddock yielded no progress as the smaller teams seek a more equitable distribution of funds. With Lotus team principal Gerard Lopez saying he fears for F1's future, Kaltenborn says an agenda is becoming clear as teams enter administration and no action is taken.

"Looking at the proposals which have been made, we have to believe that there is some agenda here," Kalteborn said. "The agenda seems to be that people are looking at four or five names to remain in here and when ideas are offered to us of a year-old chassis or engines which maybe are a different spec or a different series, there must be an agenda. And since nobody is reacting to it in front we don't know whose agenda it is.

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"Those ideas, as ideas, but that tells you where it is going."

With Ecclestone dismissing the idea of three-car teams on Sunday, Kaltenborn said constantly changing stances were being used as a delaying tactic to ensure the issue is prolonged.

"That's why it was important that we said what we had to on this topic because these things are changing every day. But the fact is it cannot go on like this, it's no way that we want to work or can work and the more these ideas are coming up the more we three (Sauber, Lotus and Force India) get the feeling that maybe some people don't want us to be around and maybe the sport is supposed to be changed in a very different way."