HSV produced 500 SS Group A versions of the Commodore in 1991 to homologate it for racing, i.e., Bathurst. It sounds like one of those, maybe built after the introduction of the VP in September 1991.

It starred at the 1987 Sydney Motor Show and wore a $45,000 price tag. Inside the 1989 HSV VL Walkinshaw Commodore. Holden’s first “Special Vehicle” earned iconic status with victory in the ...

The HSV Commodore 1989 prices range from $4,070 for the basic trim level Sedan Commodore SV 3800 to $8,360 for the top of the range Sedan Commodore SV89. The HSV Commodore 1989 comes in Sedan and ...