Earlier quoted context omitted.
American car brands traditionally did not last 100k miles until the Japanese brands flooded the American markets in the 1980s. There are performance automobiles, though, (Porsche, Nissan) that don't use hydraulic lifters in their "consumer" vehicles and require valve adjustment at 100k miles. 200k miles is actually a pretty big deal still, as it's about the lifetime of efficiency valve stem seals, crank bearings, and…
But you're mixing things which are regular maintenance with things which are a larger repair job. It almost feels like you're saying the mileage a car lasts is about how many miles it can last without maintenance ? Adjusting valves (on cars that need it) is a regular maintenance item. Cat converters, timing chains or belts are also maintenance items. Same for bushings, hoses, seals. None of these are a big deal. (Wel…
Each of those are major service items that, at 200k miles, often individually exceed the value of the depreciated automobile at shop times * shop rate. (which, unless it's a appreciating car is ~ traditionally $2000). So most people don't change them, which leads to cascading failure. (ie timing chain costs more than the value of the car, so eventually it stretches and the valves crash)