As expected, several of the manufacturers have reacted badly to the FIA's proposed regulation changes.

BMW, Honda and Mercedes-Benz have made it clear that they are far from happy, prompting fears that at least one of them could withdraw.

The main issue is the proposal to change the configuration to a 2.4 litre V8, something which all three companies are vehemently against.

"We want the engine formula open so we can differentiate from each other," said Honda's Otmar Szafnauer, "which makes it interesting for us. That is one of the reasons we are here.

"The FIA has the right to institute these restrictions," he continued, "but they don't take effect until 1 March, so we hope in the time between now and then to come to a compromise that is a bit less restrictive.

"I think the first thing to do is fight this in every way you can," he added. "We are committed to Formula One and I think the easiest thing to do in the light of something like this is quit. The hard thing to do is fight it for what you believe is the best for the sport."

"If we want to reduce costs we shouldn't change engine concept," said BMW's Mario Theissen, who has three main objections to the proposed changes. "The second is the time frame, the third is one of the other priorities was to enhance the show and spectacular cars need spectacular engines."