Formula 1 chiefs have a difficult problem to solve in terms of the future scheduling of the Canadian Grand Prix.
The race's promoter said as much on the eve of this year's edition of the event. Francois Dumontier was discussing speculation that the timing of the race could be moved in future years.
Traditionally, the F1 circus sets up its big top in Montreal in June. That is the case this year, with the latest edition of the Canada race taking place this weekend.