Editing Williams Racing (section)

====1991 season====
[[File:Mansell and Senna at Silverstone cropped.jpg|thumb|[[1991 British Grand Prix]] winner Nigel Mansell giving Ayrton Senna a lift back to the Silverstone paddock after Senna had run out of fuel]]
Boutsen left Williams and joined [[Equipe Ligier|Ligier]] at the start of the {{F1|1991}} season. Replacing him was a returning [[Nigel Mansell]], who was talked out of retirement by Frank Williams himself following two tumultuous seasons at Ferrari. Williams also recruited future 1996 world champion, [[Damon Hill]], as their reserve driver. Williams failed to finish the first Grand Prix of the season, the [[1991 United States Grand Prix|US Grand Prix]], with both drivers retiring due to gearbox problems. Patrese got back on track for the team in the next Grand Prix at [[1991 Brazilian Grand Prix|Interlagos]], coming second behind McLaren's [[Ayrton Senna]]. The [[1991 San Marino Grand Prix]] saw both cars retiring yet again: with Mansell crashing and Patrese suffering from an electrical failure. The [[1991 Monaco Grand Prix|Monaco Grand Prix]] saw Mansell finish in the points, coming in second. At the next race, the [[1991 Canadian Grand Prix|Canadian Grand Prix]], Williams locked out the front row only for Patrese to drop back with gearbox problems and Mansell to retire from the lead on the final lap due to an electrical fault. At the following race in [[1991 Mexican Grand Prix|Mexico]], Williams achieved a 1–2 finish, with Patrese finishing in first and Mansell finishing in second. Williams then ran a streak of victories, with Mansell winning the [[1991 French Grand Prix|French Grand Prix]], five seconds ahead of [[Alain Prost]]'s [[Scuderia Ferrari|Ferrari]]. Mansell then won again at the [[1991 British Grand Prix|British Grand Prix]]; it had been four years since a Briton had won the Grand Prix, Mansell having won it in [[1987 British Grand Prix|1987]]. Three consecutive victories became four when Mansell won again in [[1991 German Grand Prix|Germany]], with Patrese about 10 seconds behind him in second place. Senna ended Williams's run of victories by winning in [[1991 Hungarian Grand Prix|Hungary]], finishing five seconds ahead of Mansell. Mansell later won the [[1991 Italian Grand Prix|Italian Grand Prix]] and the [[1991 Spanish Grand Prix|Spanish Grand Prix]], while Patrese won the [[1991 Portuguese Grand Prix|Portuguese Grand Prix]] after Mansell's race was ruined by a botched pitstop in which only three wheel nuts were fitted. Williams finished second in the Constructors' Championship, scoring 125 points in total, 14 points behind McLaren. Mansell finished second in the Drivers' Championship with 72 points, 24 points behind Senna.