F1 Extra: Uncut interviews with Bottas, Zhou and Key at the Sauber launch

Fresh from the Sauber/Stake F1 Team launch event in London, where the team took the covers off the striking black and fluro green C44, Edd Straw brings Race members exclusive uncut interviews with Zhou Guanyu and technical director James Key, and all the audio from media sessions with Valtteri Bottas and managing director Alessandro Alunni Bravi.