Neither capitalism or communism gives you reliable cars. What helps is good regulation for minimum warranty periods, mandatory maintenance and spare parts availability for 15+ years, interdictions of dark patterns (e.g: end user should be able to replace the headlamps, oil filter and such easily with basic tools). And also, industry standards, ODB2 for diagnostics for instance. And now, Cybersecurity and data privacy is super relevant, you don’t want OEMs or bad actors to be able to disable your car remotely.