Sauber are one of three teams who have yet to confirm their driver line-up for the 2025 Formula 1 season. It was back in April that they announced the signing of Nico Hulkenberg, but they’ve made little progress in finding a teammate. Carlos Sainz was their top target, but he’s agreed to join Williams instead. While the 2026 Audi takeover brings long-term promise, Sauber’s dismal 2024 season – they still haven’t scored a point after 16 races – may have dissuaded Sainz. After Mercedes confirmed the arrival of Kimi Antonelli, Sauber, Red Bull and RB are the only teams still weighing up their opt…