Mr Gillett said his company would "deliver" the GP for local people
Donington Park chief executive Simon Gillett has said the track's Formula One Grand Prix is "safe" even if it has to be postponed for a year.
Mr Gillett's company Donington Ventures Leisure Ltd is facing legal action over £2.47m unpaid rent to the track owners.
He also has to complete crucial paperwork by 30 June or planning permission for the track's £100m revamp could be revoked.
Mr Gillett has said he is confident he can overcome those obstacles.
'Prepared to wait'
"The Donington Grand Prix is safe," he told the BBC.
"That's the most important thing I want to get out to people, and people need to realise that Donington is the home of Formula One going forward.
"We're talking to all the right people about all the right things and it's moving on very positively.
"There was an announcement this week from Bernie [Ecclestone] that if we do have a problem he's prepared to wait a year rather than take it anywhere else.
Donington Park was the host of the 1993 European Grand Prix
"I've talked to a lot of local people, they want Donington to have the Grand Prix, and we're going to deliver that for them."
North West Leicestershire District Council has said a legal document, known as a section 106 agreement, needs to be signed by both Mr Gillett and Donington Park's owners ahead of the deadline.
This week, bosses at contract catering firm Eclipse Catering said they were owed £46,000 by the track operators.
Donington Ventures Leisure Ltd (DVLL) said it was in the process of paying any outstanding bills to the company.
Donington Park secured a 10-year contract to host the British Grand Prix, at the expense of current hosts Silverstone, and is due to stage its first F1 Grand Prix since 1993 in July next year.
Silverstone, which is owned by the British Racing Drivers' Club (BRDC), stalled over signing a new deal and F1 commercial rights holder Bernie Ecclestone was impressed by Mr Gillett's plans to redevelop Donington.