Wet-Weather Testing Creates Competitive Imbalance

McLaren team principal Andrea Stella has highlighted a potential competitive disparity heading into the Canadian Grand Prix. He believes that Ferrari and Red Bull hold a distinct advantage over McLaren and Mercedes due to their participation in earlier Pirelli wet-weather development tests. While the FIA mandates that data from these sessions is shared among all competitors, Stella argues that the direct experience of driving in unpredictable conditions provides a subtle but valuable edge.

Pirelli organizes these development tests throughout the season, inviting teams to participate on a rotating basis. Although teams are prohibited from running specific car upgrades during these sessions, the tests offer critical insights into current chassis behavior, particularly in rain. Given that competitive wet sessions have been virtually non-existent this year, this direct feedback is invaluable for calibrating setups and understanding tyre limits.

Who Has the Edge?

Several drivers have already benefited from these wet-weather opportunities in 2026. Red Bull’s Isack Hadjar, along with Racing Bulls’ Arvid Lindblad and Liam Lawson, completed sessions at Suzuka following the Japanese Grand Prix. Lewis Hamilton took part in tests at Ferrari’s Fiorano facility in April, while Alpine’s Pierre Gasly ran at Magny-Cours earlier this month.

Ferrari and Red Bull also secured a day of wet running during the Barcelona shakedown in early January. They were the only two teams to opt for running on that particular day, which was otherwise notable for a major crash involving Hadjar. This early exposure to wet conditions could prove decisive as the Montreal race is forecast to be heavily impacted by rain.

Technical Challenges in Montreal

Stella emphasized the uncertainty surrounding power unit behavior in wet conditions. “In the wet, things deviate even more from what you anticipate and from what you can simulate,” Stella explained. “The power unit remains certainly an element of variability that is concerning. And if you have tested with it, you might have known a little bit more.”

Tyre management adds another layer of complexity. The Circuit Gilles Villeneuve features very few high-speed corners, making it difficult to generate heat. Combined with the extremely smooth track surface, warming the tyres to their optimal operating window is a significant challenge. “It's unclear whether the tyres will work within their window or they will be slightly outside their window,” Stella noted.

Weather forecasts predict temperatures plateauing around an unusually cold 12°C on Sunday. Pierre Gasly, drawing from his experience at Magny-Cours, warned that the combination of cold and rain would make grip levels extremely low. “Just the track on itself in the dry, it's difficult to warm up the tyres,” Gasly said. “So, I think in the rain, it will be extremely difficult... that will make for a pretty eventful race.”