1983 Grand Prix motorcycle racing season championship. In a fitting end to a successful career, Roberts won his last-ever Grand Prix race, however Spencer was able to secure second place to claim the world championship. The two riders dominated the season with each claiming six victories and six pole positions in the 12 race series. The following Grands Prix were scheduled to take place in 1983: Points are awarded to the top ten finishers. A rider has to finish the race to earn points. 1983 Grand Prix motorcycle racing season The 1983 Grand Prix motorcycle racing season was the 35th F.I.M. Road racing World Championship season.
1983 Australian Grand Prix 1983 Australian Grand Prix The 1983 Australian Grand Prix was a race for Australian Formula 1 cars held at Calder Park Raceway on 13 November 1983. It was the forty eighth Australian Grand Prix and the fourth to be held at Calder. The race was also the sixth and final round of the 1983 Australian Drivers' Championship. The title had already been secured by Alfredo Costanzo as he had been twenty points ahead of Andrew Miedecke after winning the previous event at Winton Raceway. Brazilian driver Roberto Moreno won his second Australian Grand Prix in three years. Local Ralt RT4