Let me add to the anecdata: my family has a Corolla that's still working after 14 years with well over 250K+ km city driving on it. Yeah, the AC's a little janky, and some of the plastic bits are brittle, but...still going strong. Modern engines are pretty superb; I'd be surprised if any of them tank before 100K. It's more likely all the other stuff in the car that falls apart (I'm looking at you - fuel pump on a Dodge Caravan).