This year’s Belgian Grand Prix was all about shifting variables, with Friday’s action rained off leaving the teams with minimal information about the slick tyres before qualifying and the race. Then, a long safety car period at the beginning of the race meant that the parameters were altered once more, with many teams having to quickly adapt their strategies to make the most out of another new situation. Jenson Button and McLaren gave us a master class in tyre management, stopping just once but at the same time pulling away from their rivals. The same was true for Sebastian Vettel and Red Bull, who also made a one-stop strategy work very effectively and gained eight places. Although Spa places heavier demands on the tyres than any other circuit on the calendar, our tyres performed well in terms of both performance and durability. Button made his final set of medium tyres perform effectively for 24 laps, or more than 160 kilometres, without any drop-off in terms of speed