 Peter Brock later recalled that after the 1985 James Hardie 1000, long time HDT driver and Brock's right-hand-man at the Special Vehicles operation John Harvey had remarked that their personal road cars (the SS Group A) were in fact faster and more reliable than the 1985 race cars.As a comparison, the VK Commodores run by the HDT at the 1984 James Hardie 1000 under the old Group C regulations (which saw the cars have much larger wheels and large aerodynamic spoilers front and back) produced over and were recorded at on the long Conrod Straight.The near standard 1985 Group A race cars only produced around and were recorded at on Conrod.