Umm ……. No.
The V2 Monaro is on an evolution of same platform as used on just about every Australian Commodore since the VB, through to the VZ.
The Sigma platform was initially looked at for the basis of the VE, while Holden engineers were working at the Cadillac division, but it was decided to be too expensive for Holden to produce, hence the Zeta / VE platform.
Denny Mooney, (Holden boss in 2004 > 2007) in an Australian interview stated that while he was at Cadillac, he was advised to give whatever help he could to this small group of engineers from some company called Holden from down under.
This interview gave an insight into just how much GM USA knew, or didn’t know, about Holden until it was ‘discovered’ by Bob Lutz. This discovery frightened the crap out of GM USA, who could not understand how Australians could build good cars on a small tight budget, and export them.
The factory at Elizabeth was the only factory in the world which could build such a variety of body shapes ........SWB sedan and coupe, LWB wagon and Statesman, utes, Crewman, & AWD. A lot of this ability was due to Peter Hanenburger and his crew.
And GM in its wisdom ****-canned the lot, and still don't understand why the company stinks here.