These days, vehicles are designed with hoists, specialized tools and manufacturer specific diagnostics programs as a basic requirement for service. Also, what used to be designed with easy access and component repair in mind is now designed with efficient packaging (=difficult access) and modular (=expensive) component replacement in mind. The aim of such is to ensure reliable vehicles which continue to meet environmental laws over a long period with the added bonus for the manufacturers where people are driven to more often upgrade their vehicles rather than contemplate ongoing expensive maintenance.
Sadly, all manufacturers seem to be doing such "efficient" designs with Germans leading the pack (at the pointy end) and Japs bringing up the rear. If the manufacturers want such design methods, fine, but they should be up front about it. Holden wasn't up front as they cuts corners and ignored simple things like including fuel filter change within their service schedule, seemingly hiding the silly cost of filter/pump replacement from prospective customers.
Seems the days of easily being able to service ones own car using basic hand tools are almost gone. To make matters worse, service manuals are not leagally offered for sale down under. This was done as a trade off allowed by ACCC as the manufacturers wanted to offer fixed price servicing (and I don't see how the 2 are at all connected). Me i'd have prefered ACCC enforce the law where service manuals and TSB's were made available in the market place so we could get quality cheap service away from a dealer network. The market place would have likley offered fixed price service in any case, simply to compete, and we'd have our official manuals & TSB's.