Donington Park chiefs have been given until the end of next week to get their British Grand Prix plans in order.
The deadline is later than the on eoriginally agreed with Bernie Ecclestone, but F1's promoter has agreed to extend his original cut-off point to give the track a final chance to prove it is ready to host the race.
Ecclestone told circuit chiefs last month that they had until the end of September to prove they had the funding in place to keep hold of the race, but he has now handed them a few extra days to sort things out.
However, Ecclestone conceeded was no nearer being able to say for sure that the race would go ahead as planned.
"I honestly don't know. I hope so, but I don't know," he said, when asked if the race would run at Donington. "Their problem is a financial one - it is them getting the money together. Everything was done and ready, and when this [financial] crisis arrived the banks pulled the plug on them."
Ecclestone said that the track had only a few more days to sort the situation out, with Silverstone still waiting in the wings to step in if Donington Park cannot press on with its redevelopment.