I would have to say the HK-HT-HG Belmonts, only because I remember my dad driving them home from work sometimes when I was a kid. He was a project manager with the Department of Works and the Belmonts were popular with government fleets. That's because they were the cheapest no-frills model with wheezy six, three-on-the-tree and stripped-out interior (see image below). I'll never forget how austere and uncomfortable they were compared to our XW Fairmont 302 V8 auto - which felt like a limo by comparison!