 I bought my 2006 C230 new and loved it- -it handle extremely well and had good acceleration and superb braking.  But the back seat was cramped for adults, so I finally decided to sell it. I cannot rate the vehicle as a good investment, because of its depreciation. The Kelly Blue Book value I advertised drew little interest, so I lowered the price. Then I looked at Kelly Blue Book a week later and the car had depreciated another $1500! I then unloaded it as fast as I could, at $17,000, and felt lucky to get even that. (Dealers only offered $14,600 for it on trade!) I paid $33k for the car, and am disappointed it depreciated so much with only 27k miles and being only 34 months old.