 502 cars were available only through Holden Dealer Team-affiliated Holden dealerships.Visually the VK Group A SS had the addition of a rear spoiler, larger front air dam and a more aggressive front grill over the standard VK Commodore.Other changes included a double row timing chain (eliminating the car's inherent weakness of 1985, a single row chain), as well as stronger conrods and suspension mountings.