Hockenheim, the historic home of the German Grand Prix, has explained what is required for the circuit to continue hosting Formula 1 beyond this year as a number of European circuits face uncertain futures.The iconic track, which was once one of the most-feared until a drastic re-design in 2002, has returned to the calendar for 2018 but this is the final year of their current deal which sees them host F1 every two years.Initially, the idea was that Hockenheim would alternate with another famous venue at the Nurburgring to keep the German GP alive but the latter was forced to halt after 2013 due to financial problems.Earlier this year there was hope for a potential return though nothing has been reported since and now the fate of the second circuit is uncertain.“We’re aiming to host a GP in the future and we’d like to have it in the future, but the key point is we cannot prolong under current conditions," Hockenheim's marketing director Jorn Teske told Autosport."We are not speaking about the fee, we are speaking about a new contract where we definitely have no risk anymore.“We have a circuit which does not receive any financial support from anybody, neither from the state nor from the region nor from economic companies, so we have to make and manage everything for ourselves.“We had some losses in the past. We had a 10-year contract and we fulfilled this contract, even though we had some better and some worse years.“Now’s the time that we cannot continue in the same way. We would be very, very happy to have F1 in Germany, not only for us but especially for the fans. But we have to change the basics.”This statement comes as perhaps the most famous trio of circuits, Monza, Spa-Francorchamps and Silverstone, all face the prospect of contracts expiring in the next year or so.While Spa signing a new deal is more likely as it enjoys a period of greater success, thanks to the mass of Dutch fans that travel to Belgium for Max Verstappen, Monza and Silverstone are very much on the other end of the scale with high fees and lower attendances.When F1 CEO Chase Carey took over in early 2017, he made a promise that the sport's European foundation would be maintained despite also wanting to push for more races in America and elsewhere.The fate of the German, Belgian, Italian and British GP's will determine whether Carey is a man of his word and the precedent has seemingly been set for races that Liberty feels F1 needs with details of the Miami race contract emerging.According to Autosport: "The Miami GP will run under what F1 has called "an atypical business model", with sources saying that Liberty is so keen to make it happen that the race will involve risk sharing and no fee."

Unsurprisingly, circuits like Hockenheim are reading that and are likely to push for the same.

"For the moment we are always talking about fees, and then we were asked how much fee would you pay to host the race?" Teske explained.

"This is not our question, because we think we should restructure the business model. This could be a track rental [by F1 or a third party promoter], or it could be a sharing of ticket income and sharing of costs.

"We presented our ideas, we presented the figures, very transparent, very clear, in the details, and now they (Liberty) have to think about it," he added.

"Do they take the big money? [If so] then we're out.

"Or do they believe in the importance of the traditional racetracks, and an important automotive country in Germany?"