While the Newcastle 500 is a motor racing event for Supercars, the Supercars Championship is what?
Newcastle 500: 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. Supercars Championship: 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.
touring car racing category based in Australia