Editing Williams Racing (section)

====2007–2009 seasons====
[[File:Alex Wurz 2007 (crop).jpg|thumb|[[Alexander Wurz]] at the [[2007 Malaysian Grand Prix]]]]
[[File:Kazuki Nakajima 2008 Canada.jpg|thumb|[[Kazuki Nakajima]] at the [[2008 Canadian Grand Prix]]]]
[[File:Nico Rosberg 2009 Turkey.jpg|thumb|[[Nico Rosberg]] at the [[2009 Turkish Grand Prix]]]]

Following Williams's worst points tally since {{F1|1978}}, the team announced that Japanese manufacturer Toyota would be supplying the leased customer engines for the {{F1|2007}} season.<ref>{{cite news|title=Williams sign Toyota engine deal|url=http://news.bbc.co.uk/sport1/hi/motorsport/formula_one/5219520.stm|work=BBC Sport|date=27 July 2006|access-date=9 June 2012}}</ref> In addition, the Toyota engine customer deal also included [[Magneti Marelli]] Step 11 engine control unit (ECU) systems and [[Panasonic]] battery package as it was used by [[Toyota F1|works Toyota team]]. A number of other changes were announced for 2007: [[Alexander Wurz]], who had been a test driver at Williams since 2006, became the team's second driver to replace the outgoing Mark Webber; Japanese driver [[Kazuki Nakajima]], son of [[Satoru Nakajima|Satoru]], replaced Wurz as a test driver alongside Karthikeyan. Sponsorship saw a change in 2007, as it was announced that [[AT&T Inc.|AT&T]] would become the title sponsors for the team from the upcoming season.<ref>[http://www.f1network.net/main/s107/st106353.htm ''AT&T Title Sponsor for WilliamsF1'']. Retrieved 20 October 2006.</ref> AT&T was previously involved as minor sponsors with the [[Jaguar Racing|Jaguar]] and McLaren teams but moved to Williams following McLaren's announcement of a title sponsorship deal with [[Vodafone]], a competitor of AT&T.<ref>[http://newsonf1.net/2005/news/12/dec14mc.htm ''Vodafone will be McLaren's Title Sponsor'' ] 20 October 2006.</ref> On 2 February, the new FW29 was presented to the media in the UK. Soon afterwards, the team secured a sponsorship deal with [[Lenovo]] who built the team's new supercomputer.

Rosberg and Wurz gave Williams a more productive season in terms of points and, in [[2007 Canadian Grand Prix|Montreal]], Wurz scored the team's first podium finish since Nick Heidfeld's second-place at the [[2005 European Grand Prix]]. Over the course of the year, Rosberg was consistently in the points, scoring 20 during the season; in comparison, teammate Wurz finished in the points three times. Following the announcement that Wurz would be retiring from the sport,<ref>{{cite news|last=Elizalde|first=Pablo|title=Wurz confirms immediate retirement from F1|url=http://www.autosport.com/news/report.php/id/63165|work=Autosport|publisher=Haymarket Media|date=8 October 2007|access-date=8 October 2007}}</ref> Williams brought in their young test driver Nakajima to drive the second car for them in the final race in [[2007 Brazilian Grand Prix|Brazil]]. The Japanese driver finished in tenth despite starting from near the back of the grid, while Rosberg enjoyed his best race of the season, finishing in fourth. Williams finished fourth in the Constructors' Championship that year.

For the {{F1|2008}} season, Williams confirmed Nico Rosberg and Kazuki Nakajima as their race drivers. Rosberg was confirmed as staying with Williams until the end of {{F1|2009}} on 9 December 2007, ending speculation that he could take [[Fernando Alonso]]'s vacated seat at McLaren.<ref>{{cite news|title=Rosberg agrees new Williams deal|url=http://news.bbc.co.uk/sport1/hi/motorsport/formula_one/7135142.stm|work=BBC News |date=9 December 2007|access-date=9 December 2007}}</ref> During the Winter testing sessions, the team ran six different liveries to celebrate their 30th year in the sport and their 500th Grand Prix.<ref>{{cite news|title=Williams to run six different liveries this winter|url=http://www.gpupdate.net/en/f1-news/177572/williams-to-run-six-different-liveries-this-winter/|publisher=GPUpdate.net|date=14 January 2008|access-date=1 February 2011}}</ref>

The 2008 season was a mixture of success and disappointment for Williams. While Rosberg managed to obtain 2 podiums in [[2008 Australian Grand Prix|Australia]] and [[2008 Singapore Grand Prix|Singapore]], the team struggled at circuits with high-speed corners. The fact that the team was one of the first to switch development to their 2009 car (when new regulations came in) also hindered their season and Williams finished a disappointing 8th in the Constructors' Championship. Rosberg stated that unless the team was more competitive in the near future, he would look to drive elsewhere. Williams retained Rosberg and Nakajima for the 2009 season.

Frank Williams had admitted that he had regretted parting with BMW but stated that Toyota had a tremendous ability to become a top engine supplier. Speculation had been surrounding Toyota's future on the Formula 1 grid. This was due to the fact that for a big-budget team, Toyota had only managed second place as their best result. In December 2008, Williams confirmed their commitment to F1 following the [[Honda in Formula One|Honda]] withdrawal announcement.<ref>{{cite news|title=Commitment to remain in F1|url=http://news.bbc.co.uk/sport1/hi/motorsport/formula_one/7771407.stm|work=BBC News |date=8 December 2008|access-date=8 December 2008}}</ref>

Ahead of the 2009 Brazilian Grand Prix, Williams announced that it would be ending its three-year partnership with Toyota and finding a new engine supplier for 2010.