HOLDENHZ 1977 - 1980

　　Developed as a successor for the HX series, the HZ was one of the most successful vehicles built by Holden in the '70s, and part of its success was the wide bodywork variety.

　　Apart from a convertible version, Holden offered the HX in any possible version, from a chassis-cab LCV to a premium vehicle. Among them, it was the sedan and the station-wagon, built for the average Michael or Rebecca, since Joe and Jenny are not so popular in Australia, but the other two were mainstream in the late '70s.

　　Depending on the trim level, the HZ featured single or twin round headlights at the front. The car's design was similar to its predecessors, with straight lines and a sloped back. At least it wasn't as sloped as on the previous model, the HX or the HJ. The only curved lines on the body were those for the C-pillars.

　　Inside, Holden installed standard bucket seats to improve ride quality. The dash panel was flat and straight, with the dials scooped inside in rectangular clusters. Depending on the trim level, the carmaker put a cloth or leather upholstery. The latter was fitted as standard on the Premium level.

　　The HZ's biggest evolution over its predecessors was the RTS – Radial Tuned Suspension, which greatly improved the handling. Under the hood, Holden installed a choice of three engines, ranged from a 3.3-liter inline-six to a 5.0-liter V8. The smallest engine was paired to a 3-speed manual, while the others were mated to a 4-speed manual. A 3-speed automatic was available as an option for the entire range.