Kazuki Nakajima
For the season, Williams confirmed Nico Rosberg and Kazuki Nakajima as their race drivers. Rosberg was confirmed as staying with Williams until the end of on 9 December 2007, ending speculation that he could take Fernando Alonso's vacated seat at McLaren. During the Winter testing sessions, the team ran six different liveries to celebrate their 30th year in the sport and their 500th Grand Prix.