It doesn't really make sense just listing the 2007 facelift 70-series as J76/J78/J79, but the pre-facelift as J70. As I mentioned, the new codes were adopted in the late 1999 (MY2000) facelift, not in the 2007 facelift. Anyway, if we want to be very technical, the pre-2000 models were not all known as J70 either. The models that became J78/J79 were actually both J75. There was also J70 (2-door short wheelbase), J73 (2-door medium wheelbase), and J77 (4-door wagon - predecessor to J76, and not sold in Australia).