P1racenews AI automatic summary:
Nico Hulkenberg has pinpointed an upgrade package at the Spanish GP in June as the turning point in Sauber’s F1 season in 2025.
Nico Hulkenberg identified the upgrade package introduced at the Spanish Grand Prix in June as the crucial moment for Sauber’s 2025 Formula 1 season, aiding in the team’s transformation.
Having spent two seasons with Haas, Hulkenberg made a return to Sauber just before the transition to become a works Audi team in 2026.
Despite a fortunate points finish in Australia, Sauber struggled at the beginning of the season until the significant updates were implemented in Barcelona, enhancing the performance of the C45.
This upgrade allowed Hulkenberg to secure a top-five finish and contributed to Sauber accumulating 70 points in the championship.
Hulkenberg highlighted his first F1 podium at Silverstone and praised Audi’s strong foundation, expressing optimism for the team’s future growth and development.
