question: While the Newcastle 500 is a motor racing event for Supercars, the Supercars Championship is what?
answer: touring car racing category based in Australia
context: Title: Darwin Triple Crown
  Passage: The Darwin Triple Crown, formally known as the CrownBet Darwin Triple Crown, is an annual motor racing event for Supercars, held at Hidden Valley Raceway in Darwin, Northern Territory.  The event has been a regular part of the Supercars Championship—and its previous incarnations, the Australian Touring Car Championship, Shell Championship Series and V8 Supercars Championship—since 1998.
  Title: Newcastle 500
  Passage: The Newcastle 500 (formally known as the Coates Hire Newcastle 500) will be a motor racing event for Supercars that will be held at the Newcastle Street Circuit in Newcastle, New South Wales starting in 2017.
  Title: Winton SuperSprint
  Passage: The Winton SuperSprint (formally known as the Woodstock Winton SuperSprint) is an annual motor racing event for Supercars, held at Winton Motor Raceway in Winton, Victoria.  The event has been a regular part of the Supercars Championship—and its previous incarnations, the Australian Touring Car Championship, Shell Championship Series and V8 Supercars Championship—since 1985.
  Title: 2016 Coates Hire Sydney 500
  Passage: The 2016 Coates Hire Sydney 500 was a motor racing event for the Supercars Championship held on the weekend of 2 to 4 December 2016.  The event was held at the Homebush Street Circuit in Sydney Olympic Park, New South Wales, and consisted of two races of 250 kilometres in length.  It was the final round of the 2016 International V8 Supercars Championship, and the final time that the venue hosted a Supercar race, being replaced by the Newcastle Street Circuit from 2017 onwards.
  Title: Supercars Championship
  Passage: The Supercars Championship (known as the Virgin Australia Supercars Championship for sponsorship purposes and often shortened to just Supercars or its long-standing name V8 Supercars) is a touring car racing category based in Australia and run as an International Series under Fédération Internationale de l'Automobile (FIA) regulations.
  Title: Tasmania SuperSprint
  Passage: The Tasmania SuperSprint (formally known as the Tyrepower Tasmania SuperSprint) is an annual motor racing event for Supercars, held at Symmons Plains Raceway in Launceston, Tasmania.  The event has been a regular part of the Supercars Championship—and its previous incarnations, the Australian Touring Car Championship, Shell Championship Series and V8 Supercars Championship—since 1969.
  Title: Sydney 500
  Passage: The Sydney 500 (formally known as the Coates Hire Sydney 500) was an annual motor racing event for Supercars, held at the Homebush Street Circuit in Sydney Olympic Park, New South Wales, Australia.  The event was a regular part of the Supercars Championship—and its previous iteration, the V8 Supercars Championship—between 2009, and 2016, being the final event on the calendar each year.
citations: Newcastle 500 Supercars Championship