Motorsport boss Max Mosley has said that if the economic climate does not improve other car manufacturers may be forced to pull out of Formula One.
Speaking at the Motor Sport Forum in Monaco, he said the announcement from Honda to withdraw from the sport had been a shock, and now many people are questioning the future participation of the other car manufacturers Ferrari, Mercedes-Benz, Renault, Toyota and BMW.
Mosley, president of motor sport's world governing body the FIA, said that until the global economy becomes more stable "things will get worse".
He said: "I don't think F1 is teetering one way or the other in terms of bust or survival, but if things get worse in the car industry then it could be.
"But, if things get better for the car industry, then that's fine, we are through the worst. We would just need to sort out Formula One."
Mosley is due to meet the remaining nine members of the Formula One Teams' Association (FOTA) at the forum to discuss a new deal to introduce a standardised engine to the sport.
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