Alfa Romeo will unveil their 2023 challenger, which will be driven by Valtteri Bottas and Zhou Guanyu, on 7th February in Zurich. The team has undergone a slight change since last year, with former Team Principal Frederic Vasseur leaving to replace Mattia Binotto at Ferrari. Sauber has appointed Andreas Seidl as their new Chief Executive Officer , in a move said to be influenced by Audi's strategic buy-out of the team ahead of its entry in 2026. The launch takes place a day after the Williams reveal. Red Bull and Haas are the only teams yet to confirm a date…