The Sandown 500 is an annual endurance motor race which is staged at the Sandown Raceway, near Melbourne, Victoria, Australia from 1964. The event's name, distance – and the category of cars competing in it – has varied widely throughout its history. Most recently, the event was held as a championship event for Supercars from 2003 to 2007 and from 2012 to 2019.

Penrite Oil Company is an Australian independent international lubricants company established in 1926. The head office is located in Dandenong South in Melbourne, Australia, with other major offices in Sydney, Brisbane, Adelaide, Perth and Auckland, New Zealand and the United Kingdom, exporting to over 50 countries in Europe, Asia and the United States of America. The company is privately owned.