Purchased March '05. My wife's uncle had owned it since new and he was selling while I was looking to replace my daily driver. I've never owned a Mercedes, I don't consider myself a Mercedes person, I'm actually a sports car guy. The car has not dissapointed me. It is very slow getting going from a stop, solid build quality, quiet, simple yet comfortable inside, nice leather and sound system. Did I say slow. Once you're up to highway speeds, the car accelerates and handles much better. It is actually fairly easy to do maintenance on and has been very reliable so far. I just went over 115K and, I'm told, she still has another 200K left! They are solid, feels like you're driving a tank at times.
Solid feel, quiet, response at highway speeds, fuel mileage (21mpg), secure. Very safe car. ABS, air bag, great car!