Williams have endured both peaks and troughs during their long history.
The 2006 season was one of the team's worst in recent years - the car was off the pace and unreliable. This was coming off another poor season in 2005 and the loss of BMW engines. It appeared Williams were in decline.
Yet the 2007 season was a turning point for the team - their revised car brought back the pace and the reliability that has brought Williams so many victories over the years. While many midfield teams were going backwards in competitiveness, Williams joined BMW Sauber in bucking the trend and enjoyed a stronger season.
Leading this turnaround was Sam Michael, the Williams technical director. He works with the two team principals, and manages both the cars design at the factory and the teams operation at the track. Always open and frank, Michael spent time talking to Autosport.com about the rise in fortunes of the team in 2007.