That HSV, it WILL leave any rice burner or super charged/turbo six in its dust. I have a friend who had a Lotus Elise until he wrapped it around a pole going thru a roundabout far too fast and ripped the car into half. (no insurance either - ouchhh)
He said it was like the WRX he also got rid of, always had to rev it to the maximum like a boy racer because it just needed more grunt.

Hence, no substitute for cubic inches, kilowatts and torque. Make it handle, and u cant lose.

Also, did I misread or mis understand that article ??, are Holden finally putting a Limited Slip Diff back into a V8 that Ford had 40 plus years ago ?

My VESS-Z has LSD and I'm pretty sure all SS's have had LSD standard since around 2007.  Prior to that it was certainly an option.

Mine is Walkinshaw enhanced and is certainly enough power.  They are not a bad car for around the $40k to $50k but I would expect a lot more at $100k which a HSV falls short.