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- Nigel Mansell finished as runner-up with Williams. (en)
- Defending champion Ayrton Senna won his third and final title with McLaren. (en)
- Despite not winning a single race in 1991 ,
Ferrari finished third with the 642, switched mid-season to the 643 . (en)
- Mansell's teammate Riccardo Patrese ended the season ranked third. (en)
- McLaren won the Constructors' Championship with the Honda-powered MP4/6. (en)
- Williams finished second in the Constructors' Championship with the FW14. (en)
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