Originally Posted By: bbhero
The answer meant a lot... But you put your head in the proverbial sand. But whatever. Go find out how many VWs lasted hardly past 100k miles.
It didn't mean a lot in the current context, and in that context it doesn't matter how many VW's lasted hardly past 100k miles. (It is mildly interesting in its own right, but I doubt that information is available, for Beetles, Toyotas, or any other car.)
You're missing or avoiding the central point here. People's belief in the reliability/longevity of a particular make or car (and both Toyota's in general and VW Beetles in particular are widely believed to be reliable/long lived), whether its justified or not, doesn't tell us anything about filtration efficiency.
Even if (and its a BIG IF) filtration efficiency was the main factor influencing engine wear, I'd bet that relatively few cars now or in the past are or were scrapped because of engine wear. They are scrapped for a whole range of reasons, notably the interaction between market forces and user attitude.
For example, any surviving Beetles are now unlikely to be scrapped, because they have classic status and are an appreciating asset. If the engine wears, it'll be rebuilt.