HDT, short for Holden Dealer Team, is an Australian performance and racing legend whose road and race cars defined muscle on the local scene. From the lightweight, homologation-built Torana L34 and A9X specials to the later bolstered Commodore SS Group A machines and Walkinshaw-tuned V8 Commodores, HDT cars featured big-block engines, close-ratio gearboxes, heavy-duty suspension, larger brakes and purposeful aero, all developed so factory racers could dominate events like the Bathurst 1000. Peter Brock and the HDT banner collected multiple Bathurst victories, turning liveries and model names into cultural icons and making limited-run cars highly collectible and sought after by enthusiasts. Interesting trivia: the L34 and A9X Toranas were produced in very small numbers as homologation cars, which today makes original parts rare and restoration projects prized. HDT's influence also shaped Australia's performance aftermarket, spawning specialist tuning components and coachbuilt upgrades. For owners and restorers, sourcing correct suspension components, exhausts, brake kits and trim is essential to preserve authenticity and performance; Automotive Superstore stocks a wide range of parts and accessories to help with rebuilds and upgrades. Whether you're chasing a period-correct rebuild or a sympathetic performance upgrade, HDT models offer a vivid slice of Australian automotive history and continue to inspire collectors and weekend racers alike. Browse our catalog for authentic patterns, fitments, and performance parts to keep your HDT driving and looking right.