1971 Grand Prix motorcycle racing season Jack Findlay's victory at the 1971 Ulster Grand Prix not only marked the first victory for a Suzuki motorcycle in the premier 500cc class, but also the first-ever 500cc class victory for a motorcycle powered by a two stroke engine. Kawasaki won their first 500cc class victory at the season ending Spanish Grand Prix at Jarama when Dave Simmonds won the race after Agostini sat out the event after already winning the championship. The inaugural Austrian Grand Prix was held at the new high-speed Salzburgring. Points were awarded to the top ten finishers in each race. Only the best of
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