In the case of the Xiaomi SU7[1]: you name it. Pretty much every conceivable way. Performance, comfort, electronics, styling, build quality. Xiaomi is on par with Apple for electronics and they actually followed through on making the car Apple wishes they made. Sells for around 40k, so on par with a Model 3, but absolutely embarrasses anything Tesla makes.

[1] https://www.youtube.com/watch?v=sdSusCDZcDg

Their world leading battery tech is much cheaper and last longer, as they bet on the right tech compared to basically every western car company. Their cars overall are much cheaper for equivalent or better quality. Their car companies are desperate to stand out given there are over 100 of them so produce wide ranges of extra features and designs.

For starters they can sell EVs at a profit, a feat which I believe only Tesla has managed among the US manufacturers.