As Formula 1 prepares to enter a new era with radically different cars, Pirelli finds itself in a delicate position. The pressure is on to improve its wet weather tyres, but regulatory and technical challenges are mounting. Amidst data uncertainty and the urgency for performance, the battle for safety on wet tracks has never been more intense.
Races in the Rain: A Headache for F1
Wet races have always been a thorny issue in the world of Formula 1, especially during the last generation of cars from 2022 to 2025. With their ground effect diffusers, these machines sprayed such a volume of water that visibility for drivers often became a genuine nightmare, even in light rain. Race control, concerned for safety, did not hesitate to halt Grands Prix, causing confusion among fans and drivers who deemed these stoppages excessive at times.
This caution was also linked to the perceived poor performance of Pirelli’s wet weather tyres. Intermediate and full wet tyres, although developed for these conditions, were often criticised for their rapid degradation and limited effectiveness, only truly performing under torrential downpours, which often meant a red flag.
Pirelli Up Against a Wall
Pirelli engineers at Monza.
In this delicate context, Pirelli had already announced its intention to revise its wet weather tyre range, introducing a third compound, a sort of “super intermediate” between the intermediate and full wet. However, a major obstacle looms for the manufacturer: the regulatory changes set for 2026. With narrower tyres and the end of ground effect, Pirelli finds itself navigating uncertainty, sorely lacking real data from current cars to refine its ideas.
A rainy start to the season could, however, prove salvatory for the Italian brand. It would allow them to assess the actual level of water projection generated by the new generation of cars, providing crucial data to guide the development of their tyres.
“For now, no one can decide [on the modification of Pirelli’s wet range], as we still do not know the level of projections,” said Mario Isola, Pirelli Motorsport director. “I’m not saying I hope for rain in the first races, but a wet race would provide us with valuable information.”
He continued: “Without the diffuser that sent a lot of water into the air, visibility should be slightly better [in 2026]. Moreover, the tyres are a bit narrower and project less water. It remains to be seen if that will be enough for race control to allow running.”
Rare Testing Opportunities
The Mercedes during Pirelli testing at Silverstone in 2025.
Improving its wet weather tyre range is a real headache for Pirelli, as opportunities for testing in wet conditions are exceedingly rare. Until now, tests had primarily taken place at European circuits equipped with watering systems, such as Paul Ricard or Magny-Cours. However, a ray of hope has emerged with the announcement of tests at the Bahrain circuit, a venue known for its abrasive asphalt and high tyre demands.
“We are trying to organise a wet test here in Bahrain,” Isola explained. “I am very confident, as the circuit has a project to wet the entire track, not with tankers but through another watering system.”
This test would be crucial for understanding how the new tyres will react on a particularly demanding circuit. “This is something that happens rarely. So we want to make the most of this opportunity,” he added. “We need a constant level of water, because clearly the risk is that the inconsistency of the water level is greater than the differences between prototypes.”
Mario Isola also revealed that a test should take place at the Bahrain circuit before the first Grand Prix of the season at the end of February. Two teams, McLaren and Mercedes, will participate with “mule” cars, meaning modified older cars designed to replicate the specifications of the 2026 regulations.
A Turning Point for Safety in F1
If Pirelli manages to improve its wet weather tyres through these tests and reliable data, it could mark a decisive turning point for safety in Formula 1. Suitable tyres would not only enhance driver visibility in wet conditions but also reduce race interruptions, ensuring a continuous spectacle for fans. This would be a breath of fresh air in a sport where every second counts and emotions run high.
In summary, the coming months will be crucial for Pirelli. Between regulatory pressure and growing expectations from fans and drivers, the tyre supplier must double down to prove it can meet modern challenges while ensuring safety on track. Formula 1 is in constant evolution, and the stakes have never been higher.
Conclusion: Towards a Rainy Future?
In the medium term, the pressure on Pirelli will not diminish. With the evolution of cars and regulations, the supplier must anticipate and innovate to ensure its wet weather tyres are up to standard. If these tests bear fruit and performance improves, it could redefine the experience of wet racing in Formula 1. Fans could then rediscover the thrill of battles on wet tracks, rather than endure the incessant interruptions that have marred recent years. The future looks as fascinating as it is uncertain, but one thing is for sure: Pirelli cannot afford to make mistakes.
