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.
A1 Grand Prix the A1 Grand Prix World Cup of Motorsport since the 2005–06 season. The World Cup of Motorsport was awarded to the A1 Grand Prix team which accumulated the most points over the course of a season. The A1GP formula provided a single "spec" car for each team. Each car was mechanically identical, built with many technical restrictions designed to limit performance, reduce running costs, and prevent any one or number of teams gaining an advantage through better equipment. This regulation provided a level playing field in which driver skill and team effort should become the primary factor for success. Specifically,