I went to the factory that makes the rear suspension spindles for them all some months ago...they also make the machines that drill and test the pilots in most power steering systems, and molds for the boeing super jumbo thing.
If the other Holden suppliers are even 10% as good, then it's a good car.
Interestingly, the US being so far from OZ, you got the cars cheaper than Aussies do.
There's also 4WD wagons, Utes, Crew Cab (5 seat) utes, and 4WD Crew Cab utes...was a 4WD Monaro (GTO) at one stage.
I reckon that they all would have sold well over there.