McLaren boss Ron Dennis has expressed his concern at Donington Park's ability to stage next year's British Grand Prix.

Circuit owner Simon Gillett was on Thursday granted planning permission by North West Leicestershire District Council for a £100million redevelopment of the East Midlands venue and he is adamant he will deliver the best grand prix in the world.

But speaking at the Autosport International Show, Dennis said: "I applaud anyone coming into grand prix racing and bringing competition. But I really do struggle to understand how the economics of Donington will work."

He added: "They have had a 25% swing in the dollar, and the contract will be a dollar-based contract, whilst it has a massive investment into infrastructure.

"I also don't understand how we are going to get in and out of the place, although I can tell you I will be in a helicopter!

"The reality is I want successful grands prix and I am concerned that, as we go down this path, the economic model, especially in this climate, won't work.

"That could be to the detriment of us hosting a grand prix in this country."