Early 2026 Formula 1 simulations reveal major gaps between teams. Pirelli’s first data from the 2026 Formula 1 tire tests reveals significant gaps between teams.

First 2026 simulation data reveals big gaps between teams

The first details from the 2026 Formula 1 simulations have emerged, offering an early glimpse into how the new regulations could reshape the grid. The latest data comes from Pirelli’s tire testing program, with the Italian manufacturer now able to analyze enough information to compare performance levels between different teams. Mario Isola, Pirelli’s Head of Motorsport, shared insights with Motorsport.com, outlining the figures that already highlight notable differences between cars.

Ferrari tests movable front wings

During his report, Mario Isola also mentioned that Ferrari carried out additional testing on movable front wings. This specific program took place right after this year’s Hungarian Grand Prix, where the Maranello team was running alongside Alpine. Ferrari’s work did not only help their own development but also provided Pirelli with valuable data on how the tires reacted under these new aerodynamic conditions, further enhancing the accuracy of the simulations.

The performance gap between cars

In recent months, speculation has grown over which team will arrive best prepared for the sweeping 2026 rule changes. Many in the paddock expect Mercedes to emerge with a superior power unit compared to rivals. Almost every F1 team has now scaled back on 2025 developments to fully focus on the upcoming regulations, and the first simulation results are already revealing surprising differences.

Mario Isola explained: “The latest simulations date back to June. According to the FIA technical directive, every year we must receive two sets of information: the first by June 30 and the second in December.” He went on to clarify that by the end of the year the product is already defined, but the data serves a key role: “It helps us select the compounds. Obviously, the block of information received on June 30 is a little less precise, and we often see significant differences between one team and another.”

A striking 20% margin

According to the figures reported, the gap between the most advanced car and the least developed one in the simulations is estimated to be around 20%. Mario Isola confirmed: “Yes, that’s a very large figure. To be on the safe side we take into account the most severe simulations, because it is important for us not to underestimate the numbers that are delivered to us. And precisely because of this uncertainty, we are working on a wider range of tire compounds.”

The revelation underlines how differently each team is approaching the new era, with development speeds already diverging significantly. As the 2026 Formula 1 season draws closer, the gap revealed in these early simulations suggests that some teams may enjoy a clear head start under the revolutionary new rules.