Renault are the latest high-profile team threatening to quit Formula 1 unless proposals to adopt a £40m budget cap in 2010 are shelved.
On Tuesday, Ferrari joined Toyota and Red Bull in declaring their intention to pull out of F1 because of the plans.
And Renault boss Flavio Briatore said: “If the decisions are not revised, we have no choice but to withdraw from the world championship at the end of 2009.”
Ferrari, meanwhile, say they will race in other series if they quit the sport.
“If it really was like that, then I have to say that our cars will race in other competitions, where – and I am absolutely convinced about that – they will find the enthusiasm and the passion of millions of fans,” said Ferrari president Luca di Montezemolo.
“Racing is part of Ferrari’s DNA and this is something that will never change.”
Reports have speculated that the Italian team might set up a rival series, compete in the United States, or enter cars in the Le Mans 24 hour race.
The new Renault R29 F1 car for 2009 could not overshadow Fernando Alonso and “the Ferrari question”.
The two-times world champion Alonso, has said he wants to concentrate on the start of the season and winning races, rather than thinking about the future and 2011 when he is supposedly going to join Ferrari.
Tall and narrow wing, not a surprise at all. There is no kinetic energy recovery system and that is pretty much all that can be said about the new Renault R29.