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- Nelson Piquet won his third and final Drivers' Championship, driving for Williams. (en)
- Lotus-Honda finished third in the Constructors' Championship with the Lotus 99T. (en)
- Piquet's teammate Nigel Mansell finished runner-up, despite having won more races than Piquet. (en)
- Williams-Honda won their second World Constructors' Championship in a row with the Williams FW11. (en)
- Ayrton Senna, driving for Lotus, finished third with 50 points more than his teammate Satoru Nakajima. (en)
- McLaren-TAG finished runner-up in the Constructors' Championship with the McLaren MP4/3. (en)
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