Wikka history on the HZ

[HK1837]

Here are the mistakes:

Not all HZ had RTS.
Kingswood SL was the base model for sedan and wagon, Kingswood was a special order delete option on a Kingswood SL.
Commercials weren't unbadged, they had HOLDEN badges on them - this is what they were called. Only the BO6 1-tonner and DL7 Sandmans had no badge.
VB was released much earlier than 11/78.
In 1980 all Passenger Holdens were cancelled, not just Kingswood.

Sandman stuff is closer to being correct.