Nup, larger numbers would have been produced definitely pre mid 12/17. The release date was only 6 weeks into 2018. Your 6 week transit time only covers the time between the end of 2017 and release date. The vehicles would not have started production in December as there needed to be adequate stock on hand, distributed through Australia and ready for sale by release date. I think 6 weeks for transit, 3 to 4 weeks for landing, certification, allocation and national distribution is more likely. Production would shut down over Christmas for 2 to 3 weeks. Holden specs were different to other markets, particularly the V6 models, and they had to be programmed into the production schedule alongside Opel and Vauxhall model's. I doubt they ran production lines dedicated to each brand, so Holdens needs had to be carried out according to all brand requirements, not just theirs. This would mean a lower and longer production rate. I think I'll stick with my timetable.