Holden has an auction once a week, every Thursday. It's just a matter of waiting for certain colours to come up. Some Like it Hot, Regal peacock, Jungle green are dealer order only colours, so it would need to have been a marketing department car, etc (they're allowed to order the bright/different colours). There's nothing available this week in that colour, they're all White, Silver and Prussian Steel. These are the colours regularly available at auction, because they're safe colours to re-sell.