Traditionally the domain of touring cars, the race has also been held for Series Production cars from 1968–1972 and GT Sports Cars in 2001 and 2002. Peter Brock is the most successful driver of the Sandown enduro with nine outright wins including seven in a row from 1975 to 1981. The race itself wasn't always run over a 500 km distance. The first two races ran for six hours while the next two ran for just three hours. The race distance was 250 km from 1970 until 1975. This was increased to 400 km in 1976 and stayed that way until 1983. It was changed for the last time in 1984 with an increase to 500 km.