In production from April 1966 until January 1968, the Holden’s HR series was a clever update of the previous HD, with revised styling and clean, modern lines that still look good today. Thanks to its wider track and lower overall height, along with revised suspension and lower profile tyres, the HR’s handling was markedly improved and the new Holden also enjoyed a more comfortable ride. Mechanical changes included two new versions of the red engine, the base 161-cid unit supplemented by an optional 186-cid motor developing 126 horsepower, both significantly quieter and smoother in their operation. Holden offered the choice of its Powerglide automatic transmission or a three-speed manual gearbox and a free-flow exhaust system was also new. The entire HR range of Standard, Special and Premier models received updated interiors while the long list of optional extras included a limited-slip diff, power front disc brakes, power steering, a tinted windscreen and two-tone paint. As Holden’s premium offering, the Premier featured plusher Morrokide upholstery, woodgrain inserts on the door trims, dash and horn bar and a front bench seat as a no-cost option, plus stainless steel side window surrounds, sill and wheelarch mouldings. The 186-cid motor was standard on all Premiers, while the 145 horsepower X2 was a rarely found option. Holden’s marketing described the HR as “Turbo-Smooth” and good examples of the model are becoming increasingly difficult to find.