"I am sure your Chevy is a perfectly acceptable mode of transport but compare it to a many European cars of the same ilk and its chalk and cheese"
Having driven many a car, both domestic and foreign (Asian and European), made, I don't really think that is true these days. In the US, Mercedes has a spotty reliability reputation, my friend's beautiful Audi A6 has had electronics problems, and his Porsche Boxter S has tranny problems. Alfa has had problems with the new Giulia. The really really expensive European cars end up mostly being garage queens, with little mileage on them. American cars are able to hold their own in quality and performance for the most part, having been pressured by the quality of many Asian cars, not European. Depends on how much you want to pay of course.
Well, have to admit my brother did put 180k miles on his Jaguar, but then it was actually a Ford with Jag styling. My own experience with European cars is that in general they are no more reliable or well built than others.
Of course, I do admit the "Chevy" we personally have is a step above most foreign cars, as it is well set up with the Corvette engine, huge Brembo brakes, the automatic magnetic shocks, stiffer stabilizer bars, fully adaptable/adjustable sport transmission, steering, and brakes for various degrees of response, from laid back touring to full race competition. Holds it's own.
And, the Holden body has proven to be well built. 52k miles of DD with no problems is not just a drive around the block. Holden did a good job with it. Cannot speak for the ordinary Holdens made for the Aussie market.