1973 Singapore Grand Prix 1973 Singapore Grand Prix The 1973 Singapore Grand Prix was a motor race held at the Thomson Road Grand Prix circuit on 22 April 1973. It was the final Singapore Grand Prix before the cancellation of the event, which resumed in 2008 as a round of the Formula One World Championship. The race was contested over 50 laps and was won by Vern Schuppan driving a March. The race was run to Australian Formula Two rules. John MacDonald had a brand new Brabham BT40 delivered to him for the race. However, his team ran into difficulty due to fuel pick-up
Detroit Grand Prix (IndyCar) Speedway. AAA also held one five-mile (8 km), non-championship race at Grosse Pointe in 1905. The race dates back to when it was a Formula One World Championship event held on the Detroit street circuit encompassing the Renaissance Center. The original circuit was with seventeen corners and proved to be even slower than Monaco. The rough, demanding course included a railroad track crossing and mimicked Monaco, with a tunnel on the main straight. While officially the "Detroit Grand Prix", it was referred to as the "United States Grand Prix East" because there were multiple Grand Prix races in the U.S.