The Holden Dealer Racing Team was an Australian motor racing team, covertly backed by General Motors-Holden's through their dealer network so as to get around GM's worldwide ban on the company being involved in motorsport. The HDRT contested the 1968 Hardie-Ferodo 500 endurance race at the Mount Panorama Circuit, Bathurst, as well as the 1968 London-Sydney Marathon using GMH's latest car, the Holden HK Monaro.
Although short-lived, this team was significant as the precursor to a permanent Holden Dealer Team set up the following year which then played a dominant role in Australian touring car racing over the next two decades.
In early 1968, the Holden Dealer Racing Team was set up by David McKay, who already ran the Scuderia Veloce race team in various forms of motor sport in Australia. A motoring journalist with Sydney's Daily Telegraph and Sunday Telegraph newspapers (both of which were owned by Sir Frank Packer), McKay learned of the upcoming London–Sydney Marathon which was sponsored by race organiser Sir Max Aitken and his UK newspaper, the Daily Express. The marathon would begin on 24 November in Crystal Palace in London, and finish on 18 December at the Warwick Farm Raceway in Sydney.