The longest race in Formula 1 history (in terms of time) is the 2011 Canadian Grand Prix, which was completed after a suspension of more than two hours in 4hr 4min 39.537sec, with Jenson Button nabbing the win on the final lap. That’s one record that will never be beaten, as the FIA’s sporting code now states that a grand prix distance is set to “the least number of complete laps which exceed a distance of 305km [190 miles]” but that if “two hours elapse before the scheduled race distance is complete”, the chequered flag will be waved at the end of the next lap. But as in the case of the Belgian GP, suspended due to a storm, the rules cap how long the organisers get before they must call it a day. “Should the race be suspended, the length of the suspension will be added to this period up to a maximum total race time of three hours.” It’s long enough, especially at Spa-Francorchamps, where it would have been dark after four hours anyway…