I bought my C320 wagon on Ebay and it is one of the best cars I've ever owned (and I've had about 30). No problems ever, gas mileage never goes below 20 and even on short trips goes over 25-26mpg. I put Michelin hi end tires on and it corners on rails even on wet pavement. Use premium gas, use Mobil 1, change oil every 5k miles and it will run forever. It was not a cream puff when I got it either.
Bought on ebay and got a good deal. Was not pristine but overall good. I upgraded tires to Michelin Hydroedge, changed plugs at 100,000 miles and use Mobil One. Car is still tight, fast, solid, fun. Looks good and gets up to 27 mpg highway. Wish I could buy a new one but they do not export C body wagon to USA any more. Big shame! Much rather have a solid used Benz than a new something less. Take care of them and they take care of you.
This car was bought from a Cadillac dealership - it had been traded for a Cadillac. That should have been our first clue. Though fun to drive, at times, the car is extremely unreliable, falling apart around us, very expensive to repair, and one of the most uncomfortable luxury or near luxury vehicles I have ever driven. The C class is the epitome of over engineering, poor quality build, and a manufacturer currently resting on a mythical reputation. This was our families second and last Mercedes. We just traded it (for a pittance) on a Lincoln MKZ. It might not be German and for that, we are truly grateful. Perhaps the only thing to miss is the sound the MB door makes when closing.
This is my 1st German car- what a difference. It is SO solid! And quiet, and powerful! I chose the MBZ over the Passat GLX wagon & BMW 325 wagon. The choice came down to quality and quietness. The BMW was cramped and really noisy (by design, I know), and the VW seemed "plasticky" although it too seemed nice. The MBZ has more feature than either of them, and I think the long term value will hold up far better than either of them. I definitely believe it is worth the extra money (hint: buy it over the internet to save $$!) I'm sure I'll be happy with it as long as it lives up to MBZ reputation for reliability.
Have owned this car over three years. It still turns heads. Great acceleration and mileage. Comfortable. Well built. Had a few minor problems, fixed by dealer on first visit. A/C controls could use an updating to a simpler system.