What’s your experience like with BYD cars that have over 25,000 miles / 3 years old with regards to quality? Sincere question as I can’t find any reviews of how they hold up. Can they maintain the fit and finish and functionality of a typical American use case?
I don't have any, but I wouldn't expect them to degrade any worse than anything else built to the same standard. Everything on it appeared to be "OEM quality" as people are fond of saying.
Remember that Tesla thought they could get away from that by using large touchscreens that then leaked, etc.. I don't see that with BYD - they seem to be using the same quality of parts that household car brands in Europe do, so I'd expect them to last as well.