 The car was assembled at Dandenong, Victoria by Holden and modified at Bertie Street Port Melbourne by HDT.The VK Group A SS Commodore was originally intended to be ready for racing in 1985 to replace the near standard VK competitors had been forced to use.However, delays in parts from suppliers meant that the HDT had not built enough road going Group A cars to pass homologation on 1 August, delaying the cars on track debut until 1 January 1986.