I have never had a Chinese car and never will. That said, having put 250,000 miles on a BMW, 200,000 on a Porsche, 95,000 on a Mercedes, and 50,000 on another Mercedes, I can tell you they run AT LEAST 3X the cost of repairs per mile as my Toyotas and Mazdas have. At 195,000 miles, my Mazda 3 has had a battery, tires, brakes, spark plugs, and a thermostat. The BMW it replaced by that time had all 4 window regulators replaced, new water pump, new radiator, new power steering pump, new ignition coils, new tie rods, besides the usual brakes and tires. It did fun stuff like have the expansion tank blow up at 102,000 miles (100,000 suggested replacement they weren't kidding!), the radiator fan bearing got loose and the fan attacked the radiator, and the freaking parking light sockets would fall apart (WTF?). The dealer wanted around $1,000 to replace the whole front wiring harness too! I found sockets on Amazon for $5 each and saved $990.
The Mercedes needed a new cylinder head at 50,000 miles and had weird electrical issues that made the heat run full blast and disabled the windows. The dealer tried to bone me on the warranty too until I proved I had been complaining about using a quart of oil every 500 miles for 2 years.
Oops - forgot I had a Volvo that had an indestructible engine and an interior that rotted to pieces if you looked at it wrong.