When I lived in Germany, in the 90s, I regularly sat in diesel Mercedes Benz taxis with over a million kms under the hood. Private drivers usually. Many had giant mileages. We used to say (tongue in cheek) that after 250k, the MB diesel engine was broken in. I don't think MB makes them like they used to anymore.
I remember one day I took my car to the mechanic and saw they were doing a head job on a Toyota Sienna (the minivan) that was used as a Taxi. Took a peek inside and realized the car had something like 450k miles. Now a proud 4Runner owner, I see on forums all the time guys bragging about hitting 300k, 400k and as high as 600k in their 4Runners.
The 4Runner of last year was the last traditional uncomplicated V6. The Lexus GX of two years ago was the last traditional V8. Aside from their small 4-cylinders, it’s all super-complicated turbos and we don’t know if those will hold up as well. Early indications are that they aren’t quite as special compared to everyone else’s super-complicated turbos.