Sauber have one of just two vacant seats left on the Formula 1 grid ahead of the 2024 season, which will be alongside their veteran signing – Nico Hulkenberg. The only other team yet to announce their full line-up is Visa Cash App RB, who are likely to lean in the direction of young Kiwi Liam Lawson. There are plenty of options that Sauber (who become Audi in 2026) could go with, including current driver Valtteri Bottas and Formula 2 championship leader Gabriel Bortoleto. It’s all about whether they would prefer some more experience, or want to mix it up with more youth in their setup during t…