Information:  - Red Bull Racing is an Austrian Formula One racing team based in Milton Keynes, England. It is one of two F1 teams owned by beverage company Red Bull GmbH, the other being Scuderia Toro Rosso. The team won four successive Constructors' Championship titles, in , , , and , becoming the first Austrian licensed team to win the title. The team also produced the quadruple world champion driver of 2010, 2011, 2012, and 2013, Sebastian Vettel. Managed by Christian Horner, the team has used Renault engines since 2007, and had a contract to do so until 2016. Red Bull Racing then used TAG Heuer-branded Renault engines starting from the season.  - 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 Fédération 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.  - Scuderia Toro Rosso, commonly known as Toro Rosso or by its abbreviation STR, is an Italian Formula One racing team. It is one of two F1 teams owned by Austrian beverage company Red Bull, the other being Red Bull Racing. Toro Rosso functions as a junior team to Red Bull Racing, with the aim of developing the skills of promising drivers for the senior team. Since 2010, the team has competed entirely independently of their sister team.  - The Fédération 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.  - Christian Edward Johnston Horner (born in Leamington Spa, England, on 16 November 1973) is the Team Principal of the Red Bull Racing Formula One team, a position he has held since 2005. His motorsport career started as a race car driver, before he switched roles to become Team Principal of FIA F3000 and later GP2 Series team Arden International Motorsport in 1999.  - Sebastian Vettel (born 3 July 1987) is a German racing driver, currently driving in Formula One for Scuderia Ferrari. He is a four-time Formula One World Champion, having won the championship in , , , and with Red Bull Racing. He is among the most successful F1 drivers of all time. He is one of only four drivers to have won four or more drivers' titles. He is contracted to remain as a Formula One driver with Scuderia Ferrari until at least the end of 2017.  - Auto racing (also known as car racing, motor racing or automobile racing) is a sport involving the racing of automobiles for competition.   - Scuderia Ferrari is the official name of the racing division of luxury Italian auto manufacturer, Ferrari, and competes in Formula One racing. It is the oldest surviving and most successful Formula One team, having competed in every world championship since the 1950 Formula One season.  - The Red Bull RB6 is a Formula One motor racing car designed by Red Bull Racing for the 2010 campaign . It was driven by 2010 World Champion Sebastian Vettel and Mark Webber and was launched on February 10 at Jerez . Vettel , who ( since joining Scuderia Toro Rosso ) makes it a habit to give his racing cars names , named his RB6 `` Luscious Liz '' . However , after unspecified minor damage was found on this chassis after the Monaco Grand Prix , the team gave Vettel a new chassis , which he then named `` Randy Mandy . '' The car claimed the first of four consecutive World Constructors ' Championships for Red Bull Racing , and in the hands of Sebastian Vettel , took the first World Drivers ' Championship of his career at the last round of the season . In qualifying , the RB6 was a consistent pace setter , setting the fastest time in 15 out of the 19 rounds . Red Bull 's chief technical officer Adrian Newey later went on to claim that the car was `` probably the car with the most downforce in the history of F1 '' . In 2014 , before his final race with Red Bull , Vettel stated that the RB6 was his favorite Formula One car to drive in his career to date .    After reading the paragraphs above, choose the best answer for the entity that related to 'red bull rb6' with the relationship of 'sport'.  Choices: - auto racing  - formula one  - motorsport  - sport
Answer:
motorsport