Here is that XA Falcon-esque HQ design I was talking about in the post above. This is the design studio in the GMH Technical centre in 1965. The HT seating buck is on the right, and the new HQ on the left. The Series plan at that stage was HR, HK, HT, HQ, HV I believe. This HQ design was replaced by what we ended up with, which is why the HG was released so the HT wouldn't run too long. Image comes from the Holden Retirees Club Website.