The Holden Dealer Team (HDT) was Holden's semi-official racing team from 1969 until 1986, primarily contesting Australian Touring Car events but also rallying, rallycross and Sports Sedan races during the 1970s. From 1980 the Holden Dealer Team, by then under the ownership of Peter Brock, diversified into producing modified road-going Commodores and other Holden cars for selected dealers via HDT Special Vehicles.

Peter Geoffrey Brock, known as "Peter Perfect", "The King of the Mountain", or simply "Brocky", was an Australian motor racing driver. Brock was most often associated with Holden for almost 40 years, although he raced vehicles of other manufacturers including BMW, Ford, Volvo, Porsche and Peugeot. He won the Bathurst 1000 endurance race nine times, the Sandown 500 touring car race nine times, the Australian Touring Car Championship three times, the Bathurst 24 Hour once and was inducted into the V8 Supercars Hall of Fame in 2001. Brock's business activities included the Holden Dealer Team (HDT) that produced Brock's racing machines as well as a number of modified high-performance road versions of his racing cars.