My father has a 98 300 diesel. It is by far the best car that he has ever owned. We have many miles of hard dirt road to our home and the car soaks it up with ease. The problems that he has had have been mostly little electrical (idiot lights going on for no reason) but the drivetrain has given him 150K trouble free miles. I dont think the newer ones have been quite as good. We also had a frieghtliner with a mercedes diesel and it was one of the worst experiences we have ever had with a vehicle. His 98 car moves right along, one of the fastest diesels I have ever been in. Its a turbo charged 6cyl.