 BAR have five months to adhere to the new rule changes |
Formula One teams remain split on rule changes made by the sport's governing body for the next few seasons. From 2005, the same tyres must be used for qualifying and racing, and engines must last two races, while engines will be reduced in size in 2006.
The rules have come into force after the teams failed to agree an alternative proposal.
But Honda, BMW and Mercedes all remain opposed to the switch from 3.0-litre V10s to 2.4-litre V8s for 2006.
Honda's Ottmar Szafnauer said the manufacturer, which supplies BAR, felt the restrictions would reduce much of the technical challenge of F1.
"We want engine formula open so we can differentiate from each other, which makes it interesting for us," he said.
 |  If we want to reduce costs we shouldn't change engine concept |
"That is one of the reasons we are here. "The FIA has the right to institute these restrictions 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.
"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."
BMW chief Mario Theissen had three objections: "If we want to reduce costs we shouldn't change engine concept.
"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."
Willis added: "It would have been a wish from a purely technical point of view we would have known the regulations a bit earlier.
"In order to establish which tyre is correct we will have to do a lot of running but to maximise the reliability on the engine we are going to have to minimise the mileage so it is going to be a balance.
"I suppose in the end you have to decide if the spectacle is better or not and the proof of that is in the tasting."
Toyota and Ferrari, who were part of a block of six teams who had always backed the changes, said they were pleased the rules had finally been formalised after months of uncertainty.
Toyota technical director Mike Gascoyne said: "I am relieved we have got some regulations.
"Toyota have always supported the 2.4-litre and two-race engines so it is not a problem for us."
Ferrari technical director Ross Brawn backed FIA president Max Mosley's belief that F1 cars needed to be slowed down, and rejected claims the new rules would debase the sport. "There will still be plenty of potential for discriminating techology to make a difference between entrants."
But BAR technical director Geoff Willis said: "We are all perfectly happy in stopping the use of extremely expensive materials and technologies, but we have to make sure F1 doesn't end up at an evolutionary dead end.
"It is a difficult one because you can't put the genie back in the bottle.
"If the technology is out there, the performance of the cars is out there and we have to find a way of keeping the interest, controlling the cost and keeping the performance capped.
"I'm not sure there was going to be a solution that everybody would be happy with."
MMIX
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