1991 Australian Grand Prix a concussion”. He also made reference to the fact that “there was a truck down the straight” as well as four cars and, as a result, the race should have had 10 laps to be stopped. With less than seventy-five percent of the race distance being completed, half the usual world championship points were awarded, the first time this had happened in Formula One since the wet 1984 Monaco Grand Prix had been stopped just before half distance. Senna and Berger's result was enough for McLaren to win the 1991 World Constructors Championship by 14 points over Williams. This was
1987 Portuguese Grand Prix one usable car which went to Brundle. With Piquet finishing third ahead of both Mansell and Senna, Piquet expanded his championship points lead to 18 points over Senna and 24 over Mansell. Numbers in brackets refer to positions of normally aspirated entrants competing for the Jim Clark Trophy. 1987 Portuguese Grand Prix The 1987 Portuguese Grand Prix was a Formula One motor race held at Estoril on 20 September 1987. It was the twelfth round of the 1987 Formula One season. It was the 16th Portuguese Grand Prix and the fourth to be held at Estoril. The race was held