Thomson Road Grand Prix circuit Thomson Road Grand Prix circuit The Thomson Road Grand Prix circuit was a former street circuit on Old Upper Thomson Road in Singapore. It hosted races from 1961 to 1973 under Formula Libre and Australian Formula 2 rules; races until 1965 are now considered part of the lineage of the Malaysian Grand Prix, and races after Singapore's independence in 1966 are considered part of the lineage of the Singapore Grand Prix. During the initial years, the main Motorcycle and Car Grand Prix lasted 60 laps, although this was eventually refined into two separate races - a preliminary 20 lap event
1970 Formula One season crowned champion. The 1970 season was one of the most tragic in Formula One history. Before Rindt's death at Monza, New Zealander Bruce McLaren was killed testing a McLaren Can-Am car at the Goodwood Circuit in England, and Briton Piers Courage was killed at the Dutch Grand Prix at Zandvoort, driving a Frank Williams-entered De Tomaso. 1970 saw the introduction of slick tyres by Goodyear. After a Formula One career which began at the 1955 British Grand Prix, triple World Champion Jack Brabham retired at the end of the year. The first round was the South Africa Grand Prix held