I just bought a 1999 C230 Sedan Kompressor with less than 69k miles, in great condition internal/external. Apart from a little cricket noise the car is perfect. I've owned a 2001 coupe C230 Kompressor and I prefer the sedan for its solid stance and build quality. I've owned 4 others E, TD, E4matic and very happy with all of them. I regret selling them - think this time will be a keeper.
Design and build quality. Great radio (not a Bose) but it can get to all the stations even as far away as San Diego (150 miles from my house).
A larger or functional cup holders for front and back seat.