Editing Williams Racing (section)

===Return to Cosworth engines (2010–2011)===
====2010–2011 seasons====
[[File:Nico Hulkenberg 2010 Malaysia 2nd Free Practice.jpg|thumb|[[Nico Hülkenberg]] at the [[2010 Malaysian Grand Prix]]]]
After the termination of their Toyota contract, Williams announced that from the {{F1|2010}} season they were to enter into a "long-term partnership" with [[Cosworth]], and would be using an updated version of the CA V8 engine which powered their cars in 2006.<ref>{{cite web|title=Williams confirm Cosworth for 2010|url=http://www.racecar-engineering.com/articles/f1-2010-williams-fw32-cosworth/|date=30 October 2009|work=Racecar Engineering|access-date=2 November 2009}}</ref> Williams also announced a complete driver change for the 2010 season. [[Rubens Barrichello]] joined from 2009 Constructors' Champion [[Brawn GP]], whilst GP2 champion [[Nico Hülkenberg]] graduated from the test driver seat. Replacing Hülkenberg in the test seat was Finland's [[Valtteri Bottas]], who finished third in the [[2009 Formula Three Euroseries season|2009 Formula Three Euroseries]] as well as winning the non-championship [[2009 Masters of Formula 3|Masters of Formula 3]] event at [[Circuit Park Zandvoort|Zandvoort]].<ref>{{cite news|title=Williams signs Bottas as test driver|url=http://www.autosport.com/news/report.php/id/81111|first=Matt|last=Beer|work=Autosport|publisher=[[Haymarket Media Group]]|date=29 January 2010|access-date=29 January 2010}}</ref>

Their new 2010 car, the [[Williams FW32]], was unveiled for the first time at a shakedown test at [[Silverstone Circuit|Silverstone]].<ref>{{cite web|url=http://www.autosport.com/news/report.php/id/81104|title=Exclusive: First image of new Williams|date=28 January 2010|work=autosport.com|access-date=6 February 2016}}</ref> Its first official test was on 1 February at [[Circuit Ricardo Tormo]] in [[Valencia, Spain|Valencia]]. Hülkenberg took the team's first pole position in over five years, in variable conditions at the {{F1 GP|2010|Brazilian}}.<ref>{{cite news|url=http://news.bbc.co.uk/sport2/hi/motorsport/formula_one/9163670.stm|title=BBC Sport – F1 – Nico Hulkenberg takes Brazilian GP pole for Williams|work=BBC Sport|access-date=6 February 2016}}</ref> Hülkenberg was dropped from the team ahead of the {{F1|2011}} season, and replaced by Venezuelan newcomer and reigning [[2010 GP2 Series|GP2 Series]] champion [[Pastor Maldonado]].<ref>{{cite news|title=Williams sign Venezuelan Pastor Maldonado for 2011 F1 season|url=https://www.theguardian.com/sport/2010/dec/02/williams-pastor-maldonado-2011-f1-season|date=2 December 2010|access-date=3 February 2011|work=The Guardian |location=UK|agency=[[Press Association]]}}</ref> The combination of Barrichello and Maldonado meant that 2011 would be the first time since 1981 that Williams would start a season without a European driver in their line-up.

At the second pre-season test in Jerez, Barrichello posted the fastest time of the week on the last day. That was to no avail as Williams endured one of their worst seasons to date: two ninth places for Barrichello and one tenth place for Maldonado were their best results during the entire year. After Brazil, the team ended with a ninth place in the Constructors' Championship.