Power for the road going Group A SS with its 4.9-litre engine was rated at at 5200 rpm, with a top speed of . Transmission options were four-speed "M21" manual, or optional five-speed Getrag "T5". (The T5G transmission WAS NOT an option with the VK Group A - some cars did get it fitted at Bertie Street by SPECIAL arrangement with HDT) It was dealer fitted! The car was assembled at Dandenong, Victoria by Holden and modified at Bertie Street Port Melbourne by HDT.