there is a p1800 that runs around my town that has 1.2million miles on it, it has like a trilion of the volvo mile badges on the front grill. Original motor, only things changed are maintenence.

We had a volvo 240 that posted up 357k miles on original motor, and a Volvo 740 that posted up 298k miles.....both with general maintenence. Original trans on both.