My C 250 Coupe is a complete Jekyll and Hyde. On the highway and cruising along it is smooth as butter and sips away at the fuel, love it. In town it is a completely different story. The turbo lag makes almost any left hand turn a life endangering event and because the transmission (7 speed) and turbo are so busy it is brutal on gas!
Inside, the car is beautifully laid out and super comfortable. Outside, it's maybe not the best looking coupe out there, but definitely has character and presence.
Overall, mediocre from MB.