BMW-Sauber team boss Mario Theissen said it was important not to "destroy" the mix of manufacturer teams and independent teams.

BBC: F1 drivers stand behind Ferrari

Theissen said the teams had been caught by surprise when FIA technical delegate Charlie Whiting told their engineers in the meeting that they could not have an input into a discussion on finalising next year's rules because they did not have entries.

BBC: F1 breakaway plans still in place

"The big difference with computational fluid dynamics (CFD) compared to wind tunnels is that you not only get results, but also an understanding of what goes on, " said team boss Mario Theissen.

CNN: The F1 race that no one gets to see

"Of course, we, the employees in Hinwil and Munich, would all have liked to continue this ambitious campaign and show that this season was just a hiccup following three successful years, " said team boss Mario Theissen.

BBC: BMW to quit F1 at end of season

"We have to keep our options open, " said BMW F1 boss Mario Theissen.

BBC: F1 breakaway plans still in place