Ultimately it is a matter of perspective, but I think BYD is doing quite well in Australia. Atto 3 has consistently been the best-selling non-Tesla EV since launch. Australia has been slower to adopt electrification than most comparably wealthy and developed nations. Only 8% of vehicles sold last month were EVs and that is both a new record, and a dramatic increase over the ~3% rates recorded in 2022. So for BYD to come in as an almost unknown brand, offering a single EV model, and to generate sales numbers comparable to Honda, in its first year on sale, is impressive.
The sales success of MG and GWM demonstrate that the Australian market is willing to accept Chinese vehicles in significant numbers, while Tesla's recent success demonstrates that the market is opening up to electrification. Both bode well for BYD's prospects in the years ahead as brand familiarity increases and the model range is built out. In 2019 MG finished in 20th position with 8300 sales for the year. Today they are in 7th position, having sold 32,000 vehicles over the first 7 months of the year, and are on track to overtake Mitsubishi* for 6th position (although they may both be overtaken by Tesla). Things change quickly.
* This is significant because Mitsubishi has been one of the "big six" brands in the Australian market for many years. We have Toyota as the apex predator, and then five second-tier brands: Mazda, Kia, Hyundai, Ford, Mitsubishi. The latter, with a relatively limited model range that is sold at least partly on superior value proposition, always looked the most vulnerable of that group, and so it is coming to pass.