A Russian billionaire is now the full owner of the Nurburgring circuit.

In late 2014, Viktor Kharitonin, who co-founded the pharmaceutical company Pharmstandard, bought into the embattled German Grand Prix venue.

Forbes Russia now reports that Kharitonin, 43, has upped his stake from 80 to 99 percent.

"Today we have closed the deal," he is quoted as saying, with Forbes claiming that the value of the new transaction is some €38m (£29.5m).

It is believed that Kharitonin has paid €77m (£59.7m) in total for the circuit, with the minority shareholder GetSpeed keeping a symbolic 1 percent.

Amid the Nurburgring's well-documented financial and ownership troubles, Germany fell off the Formula 1 calendar last year and is once again back in doubt for 2017.

F1 supremo Bernie Ecclestone said that he came close to buying the Nurburgring, but the then owners opted for another offer "for the sake of one or two million.”

"I think we can say for sure that there will not be a race [in 2017],” he told motorsport-magazin.com late last year.

Explaining the 2015 absence now, Kharitonin said: "We ourselves refused because they did not agree with the organisers on financial matters."

Kharitonin, however, claims that talks with Ecclestone will resume.