[2] During the course of the HX series, front bucket seats were adopted as standard equipment for Kingswood-badged vehicles.

The mainstream passenger car range consisted of 4-door sedan and 5-door wagon body styles in three trim levels.

A Kingswood Silver Anniversary model was released in November 1976 to celebrate 50 years of General Motors in Australia and a Kingswood Deluxe sedan and wagon was also introduced during the HX model life in September 1977 with a 4.2 litre V8 as standard.

The commercial vehicle range included coupe utility, panel van and cab chassis truck models: The base models were marketed simply as the Holden Ute and Holden Van and both retained the HJ style grille.

[2] The 2.8-litre inline six available in the HJ series had been deleted, and the Monaro GTS and Holden Limited Edition models were only offered with the eight-cylinder engines.