Williams driver Carlos Sainz has voiced sharp criticism regarding the performance of Pirelli wet weather tire compounds. His comments followed a highly chaotic and rain-affected weekend at the Interlagos circuit during the Brazilian Grand Prix.
Heavy downpours initially forced drivers to tackle qualifying using full wet tires before transitioning to intermediate compounds as track conditions slowly improved. However, unpredictable rain return during the main race created severe operational windows that exposed mechanical and aerodynamic vulnerabilities across the field.
Speaking in his capacity as a director for the Grand Prix Drivers' Association (GPDA), Sainz represented collective driver frustration regarding Pirelli's rain options, pointing out structural flaws in both intermediate and extreme wet rubber operating ranges.


"They are simply not up to standard. I believe the performance level of both wet and intermediate tires is not satisfactory. We must work together with Pirelli to find a better solution, because in mixed conditions the intermediate compound continues to show noticeable weakness at the rear. By the time it reaches temperature, the front is already compromised," Sainz explained.
The Spanish driver emphasized that safety concerns over aquaplaning were paramount during full wet conditions in qualifying, where cars lost unpredictable traction under high acceleration zones.
"As for the extreme wet tires, we experienced severe aquaplaning in qualifying and a major lack of rear grip. In short, more development work is needed for both compounds," he added, urging immediate technical interventions ahead of upcoming events.
Tire operating windows and compound balance remain central topics in paddock debates. The GPDA plans to bring these empirical concerns to Pirelli and the FIA to ensure driver safety is safeguarded in heavy precipitation scenarios.



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