An 'ultra-rare' Holden Torana A9X built over four decades ago is up for auction this weekend and is expected to fetch a record-high price of over $1million, with interest from all over the globe.

The original Torana, the HB, was basically a modified version of the Vauxhall Viva, ("Vauxhall" taken from the Latin vox – meaning "public" and haul – "to tow or carry", which summed the model ...