100s of models share a few standard platforms with like 80% parts commonality in the broader ecosystem. A subbrand from one of the giants with staying power is going to be fine, someone in PRC going to keep after market parts flowing forever, like they do for western brands. Of course whether this convenient/ubiquitous in reign like Europe depends on geopolitics, if EU going to make it hard for PRC producers then PRC producers going to have hard time with EU consumers, which arguably is the point. Really have to see what PRC plants in EU starts delivering, ultimately there's no reason for rest of EU to be dependant on German or French cars if they have Chinese cars at home.