Bosses at Donnington Park have refused to give up on the possibility of hosting the British Grand Prix despite Silverstone chiefs claiming they are close to a deal.
The circuit's leasing company, Donnington Ventures, says a deal is possible even though the firm is in administration and time is against them.
"As far as I see it there are two tracks competing, so in my mind that makes it 50-50," chief executive Simon Gillet said.
"There are half a dozen people interested at the moment, from different backgrounds, with different ideas and intentions, but from a location point of view and a fans' point of view, everything about Donington makes it a viable circuit."
The company secured a 17-year contract to host Formula One in July last year - only to see it withdrawn following a failure to secure the £135 million funding required to meet the redevelopment plans.
F1 rights holder Bernie Ecclestone has set a December 9 deadline for a deal to be done for a British race next summer.
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