Please answer the following question: Information: - The 1977 South African Grand Prix was a Formula One motor race held at Kyalami on 5 March 1977. The race is principally remembered for the accident that resulted in the deaths of race marshal Frederick Jansen van Vuuren and driver Tom Pryce. It was also the last race for Carlos Pace, who was killed in an aircraft accident less than two weeks later. - Nelson Piquet Souto Maior (born August 17, 1952), known as Nelson Piquet, is a Brazilian former racing driver and businessman. Since his retirement, Piquet has been ranked among the greatest Formula One drivers in various motorsport polls. - Gordon Murray (born 18 June 1946 in Durban, South Africa), is a designer of Formula One race cars and the McLaren F1 road car. - The BMW M12/13 turbo 1500cc 4-cylinder turbocharged Formula One engine, based on the standard BMW M10 engine introduced in 1961, powered the F1 cars of Brabham, Arrows, Benetton. Nelson Piquet won the FIA Formula One Drivers' Championship in 1983 driving a Brabham powered by the BMW M12/13 turbo. It was the first Drivers' Championship to be won using a turbocharged engine. The engine also powered the BMW GTP and in the 2.0 liter naturally aspirated form, the successful March Engineering Formula Two cars. - The 1984 Formula One season was the 35th season of FIA Formula One motor racing. It featured the 1984 Formula One World Championship for Drivers and the 1984 Formula One World Championship for Manufacturers which were contested concurrently over a sixteen-race series which commenced on 25 March, and ended on 21 October. - Auto racing (also known as car racing, motor racing or automobile racing) is a sport involving the racing of automobiles for competition. - Sir John Arthur "Jack" Brabham, , (2 April 1926 19 May 2014) was an Australian racing driver who was Formula One champion in , , and . He was a founder of the Brabham racing team and race car constructor that bore his name. - Formula Two, abbreviated to F2, was a type of open wheel formula racing first codified in 1948. It was replaced in 1985 by Formula 3000, but revived by the FIA from 20092012 in the form of the FIA Formula Two Championship. - The Federation Internationale de l'Automobile (FIA, English: International Automobile Federation) is an association established as the "Association Internationale des Automobile Clubs Reconnus" (AIACR, English: 'International Association of Recognized Automobile Clubs') on 20 June 1904 to represent the interests of motoring organisations and motor car users. To the general public, the FIA is mostly known as the governing body for many auto racing events. The FIA also promotes road safety around the world. - The Superstars International Series was a production-based touring car racing championship held between 2004 and 2013. It was managed by the "Superstars World of Racing SpA", SWR, a company of FG GROUP with headquarters in Rome and sanctioned by the Automobile Club d'Italia (ACI) and the Commissione Sportiva Automobilistica Italiana (CSAI). FG GROUP, led by Maurizio Flammini, is famous for having promoted the FIM World Superbike Championship from its beginnings in 1988 until its sale to Infront Sports & Media in 2007. - Formula One (also Formula 1 or F1 and officially the FIA Formula One World Championship) is the highest class of single-seat auto racing that is sanctioned by the Federation Internationale de l'Automobile (FIA). The FIA Formula One World Championship has been the premier form of racing since the inaugural season in 1950, although other Formula One races were regularly held until 1983. The "formula", designated in the name, refers to a set of rules, to which all participants' cars must conform. The F1 season consists of a series of races, known as "Grands Prix" (from French, meaning grand prizes), held worldwide on purpose-built F1 circuits and public roads. - Ronald Sidney "Ron" Tauranac AO (born 13 January 1925) is a retired Australian engineer and racing car designer, who with Formula One driver Jack Brabham founded the Brabham constructor and racing team in 1962. Following Brabham's retirement as a driver at the end of the 1970 season, Tauranac owned and managed the Brabham team until 1972, when he sold it to Bernie Ecclestone. He remained in England to assist with a redesign of a Politoys Formula One chassis for Frank Williams in 1973 and helped Trojan develop a Formula One version of their Formula 5000 car. - March Engineering was a Formula One constructor and manufacturer of customer racing cars from the United Kingdom. Although only moderately successful in Grand Prix competition, March racing cars enjoyed much better achievement in other categories of competition, including Formula Two, Formula Three, IndyCar and IMSA GTP sportscar racing. - The Brabham BT53 was a Formula One car designed by Gordon Murray for the Brabham team for the 1984 Formula One season and was a development of the BT52 which had carried the team 's lead driver Nelson Piquet to the 1983 championship . The car was almost identical to the final development version of the 1983 car , the BT52B , but featured larger sidepods for improved cooling , and the turbochargers and intercoolers were repositioned for better fuel efficiency as refuelling stops were now banned , leading to the car having to carry an enlarged ( 220 litre ) fuel tank . The turbocharged BMW M12 engine now produced around 900 bhp ( 671 kW ; 912 PS ) in qualifying trim , de-tuned to 800 bhp ( 597 kW ; 811 PS ) for the races , making it the most powerful car ever seen in F1 at the time . This power allowed Piquet to record the fastest speed trap of the 1984 season when he clocked 325 km / h ( 202 mph ) on the 1 km long straight at the old Kyalami circuit during qualifying for Round 2 of the championship in South Africa . The car was driven by reigning world champion Piquet who was joined at Brabham by the Fabi brothers Teo and Corrado in a shared drive allowing older brother Teo to honor commitments in the North American -- based Champ Car World Series for Forsythe Racing ( Teo Fabi had started racing Champ Car for Forsythe in 1983 and sat on the pole for the 1983 Indianapolis 500 , being only the second rookie in 500 history to do so ) . Corrado replaced Teo three times in 1984 , the first being Monaco when Teo was racing in Milwaukee . The other two were in North America as Teo missed both the Canadian and Dallas Grands Prix while racing at Portland and Cleveland respectively . Teo Fabi also missed the season ending Portuguese Grand Prix when he was racing the Champ Car race at Laguna Seca . Fabi was replaced in Portugal by Manfred Winkelhock who had raced the first 13 races of the season for the ATS team . The reason Brabham ended up with the Fabi brothers sharing the drive was reportedly due to the team 's... - Motor Racing Developments Ltd., commonly known as Brabham , was a British racing car manufacturer and Formula One racing team. Founded in 1960 by two Australians, driver Jack Brabham and designer Ron Tauranac, the team won four Drivers' and two Constructors' World Championships in its 30-year Formula One history. Jack Brabham's 1966 Drivers' Championship remains the only such achievement using a car bearing the driver's own name. - Thomas Maldwyn Pryce (11 June 1949 5 March 1977) was a British racing driver from Wales, famous for winning the Brands Hatch Race of Champions, a non-championship Formula One race, in 1975 and for the circumstances surrounding his death. Pryce is the only Welsh driver to have won a Formula One race and is also the only Welshman to lead a Formula One World Championship Grand Prix: two laps of the 1975 British Grand Prix. - Kyalami Racing Circuit (from "Khaya lami", "My home" in Zulu) is a motor racing circuit located in Midrand, Gauteng province, South Africa. The circuit has been used for Grand Prix and Formula One races and has hosted the South African Grand Prix many times. Among the Formula One races held at the track the 1977 South African Grand Prix stands out, as it is principally remembered for the fatal accident that claimed the lives of race marshal Frederick Jansen van Vuuren and driver Tom Pryce. In recent years, the area surrounding the circuit has developed into a residential and commercial suburb of Johannesburg. More recently, Kyalami has played host to five rounds of the Superbike World Championship from 1998 to 2002 and later in 2009 and 2010, the season finale of the Superstars Series in 2009 and 2010, and the South African round of the 200809 A1 Grand Prix season. After reading the paragraphs above, we are interested in knowing the entity with which 'brabham bt53' exhibits the relationship of 'sport'. Find the answer from the choices below. Choices: - auto racing - formula one - formula two - motorsport - touring car racing - united kingdom
Answer:
motorsport