Editing Williams Racing (section)

====2006 season====
 [[File:Nico Rosberg Canada 2006.jpg|thumb|[[Nico Rosberg]] in the [[Williams FW28|FW28]]-Cosworth at the [[2006 Canadian Grand Prix]]]]
Williams opted for [[Cosworth]] V8 engines for the {{F1|2006}} which saw [[Nico Rosberg]] replace German [[Nick Heidfeld]], who departed for [[BMW Sauber]], while [[Mark Webber (racing driver)|Mark Webber]] stayed on with the team. Despite having signed a contract to race for Williams, [[Jenson Button]] decided to stay with [[British American Racing|BAR]] for 2006 as it was to become a Honda works team. In September 2005 a deal was reached to allow Button to remain with BAR, with Williams receiving around £24m, some of it paid by Button himself, to cancel this contract.<ref>{{Cite news|url=http://news.bbc.co.uk/sport2/hi/motorsport/formula_one/4267520.stm|title=Button agrees deal to stay at BAR|date=21 September 2005|via=news.bbc.co.uk|access-date=18 September 2020}}</ref>

Williams and Cosworth entered a partnership agreement where Cosworth would supply engines, transmissions and associated electronics and software for the team.<ref>{{cite news|title=Williams turn to Cosworth engines|url=http://news.bbc.co.uk/sport1/hi/motorsport/formula_one/4153236.stm|work=BBC Sport|date=15 August 2005|access-date=9 June 2012}}</ref> Major sponsors Hewlett-Packard concluded sponsorship agreements one year before their official end of contract. The Williams team also switched to [[Bridgestone]] tyres.

The season started well, with both drivers scoring points in the opening race of the season, and Nico Rosberg setting the fastest lap at the [[2006 Bahrain Grand Prix|Bahrain Grand Prix]]. The rest of the season was disappointing for Williams, with 20 retirements out of 36 starts for the two cars. The team failed to finish on the podium all season, the first time this had happened since Williams's debut season in 1977. The team eventually finished eighth in the Constructors' Championship, with only 11 points.