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
Circuit Paul Ricard circuit in 1983, 1988, 1989 and 1990. The circuit hosted the Formula One French Grand Prix on many occasions, the first of which was the 1971 French Grand Prix. The circuit was also extensively used for testing, especially in Formula One. In 1986, Brabham Formula One driver Elio de Angelis was killed in a testing accident at the fast first turn after the rear wing of his Brabham BT55 had broken off. Although the circuit was not the cause of the crash, it was modified in order to make it safer. The length of the Mistral Straight was reduced from