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
1980 United States Grand Prix West 1980 United States Grand Prix West The 1980 United States Grand Prix West was a Formula One motor race held on March 30, 1980, at Long Beach, California. It was the fourth round of the 1980 Formula One season. The race was the fifth United States Grand Prix West and the sixth street race to be held at Long Beach. The race was held over 80 laps of the 3.251-kilometre circuit for a total race distance of 260 kilometres. The race was won by Brazilian driver Nelson Piquet driving a Brabham BT49. It was Piquet's debut World Championship victory in