P1racenews AI automatic summary:
Pirelli’s development of its 2025 tyres switched from dry to wet running.
Due to a sudden change in the weather at Spa Francorchamps, Pirelli had to adjust the run plan for its final day of tyre testing before the F1 summer shutdown. The unexpected rain disrupted the testing schedule after a promising dry day on Tuesday allowed for significant development and evaluation of new slick compounds for next year. The alteration in weather conditions necessitated a shift in focus to evaluating extreme and intermediate tyres on a wet track. Aston Martin reserve driver Stoffel Vandoorne ended up completing 71 laps under the revised programme, while Alpine’s Jack Doohan managed only 15 laps before the rain intensified. The next tyre development test for 2025 is scheduled for September 3 and 4 following the Italian Grand Prix, with Red Bull, RB, and Mercedes scheduled to support Pirelli at Monza.
