In particular, when Holden gave the green light for the development of the Torana GTX-R in mid-1969, the Australian automaker's engineers decided to base the sports coupe on the running gear of the production Torana GTR XU-1, a compact-sized model which had its origins in the British Vauxhall Vivas of the mid 1960s.
The two seater was fitted with the standard's Torana XU1's 186 cubic inch or 3.0-liter straight six that generated an output of 160HP at 5,200rpm and 285Nm or 210 lbs-ft of torque at 3,300rpm. Power was channeled to the rear wheels through a four speed manual transmission. Weighing in at just 1,043 kg or around 2,300 pounds, the GTR-X reportedly posted a top speed of 210km/h or 130mph during testing.
Despite its humble underpinnings, the Torana GTR-X boasted a striking and uncluttered exterior design with an elongated front end that hosted a pair of pop-up lights and a low wedge-shaped grille. The 'wedge' theme continued at the rear-end that featured an elevated tail light assembly. The body was made out of fibreglass.
The Aussie coupe's interior styling matches the simplicity of the exterior design with the most prominent features being the machined aluminium instrument panel and the high-backed sports seats.
As you can see from the brochure below, Holden was very serious about putting the Torana GTR-X into production as the company built several prototype models and even went as far as making a promotional film on the car only to pull the plug at the last minute amidst concerns on the financial viability of the project. All we can say is what a shame...
Official Brochure of Holden Torana GTR-X