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.
Williams Grand Prix Engineering the year. Ferrari dominated for a third consecutive season, winning 15 of the 18 races. Williams picked-up a win at the final race in Brazil, with Juan Pablo Montoya finishing one second ahead of Kimi Räikkönen's McLaren; this remained Williams's last F1 win until the 2012 Spanish Grand Prix. Another low part of the season was when both Williams and Toyota were disqualified from the Canadian Grand Prix after it was discovered that both cars had brake irregularities, the brake ducts seemingly not conforming to regulations. Williams finished the season in fourth, scoring 88 points and finishing on the podium