I purchased my 2013 C300 luxury 4matic in November of 2012. The new dash redesign inspired by the E-Class was a big improvement over the old design. The ext and int fit and finish is flawless. Great V6 acceleration. The ride is firm, smooth & quiet. The opt leather seats are firm & comfortable but lack a full range of adjustment for the front seat bottoms. I get 27-30 mpg on the highway. 7 spd trans shifts smoothly. Nav system works well. Blind spot warning feature is excellent. Get the keyless go feature. Glove box is to small. The blue tooth phone system is very clear to the person being called. The last C-Class to be built in Germany for the US market. A car to keep for a long time.
I just turned in my 2010 E350 Coupe for the C300 Sport 4Matic for weather issues. While it doesn't have the speed of the E350 (which of course, it is not meant to), it is spry and actually more fun to drive as the car has no blind spots and you can zip in an out of city traffic with ease. (I am 5' 3" and can see over the roof.) I love it!!! Great traction on wet roads and the ECO option and the gas mileage are added benefits. Kept the same Panoramic Roof and stero system as I had in the E350. Couldn't be more pleased. I came from having BMWs and Volvos and Mercedes does it right!!
The good: recent 1600 mile trip to MSY over thanksgiving netted 27.5 mpg overall. 650 mile hwy trips with slight tail wind netted 28 - 30 mpg at 80mph. Here in STL around town and commuting to work I average 26 mpg. So not bad for all wheel drive. The infotainment system is great, even the cheaper one like I have with the cheap nav. It's all u will need. Now for the bad: dash rattles a bit over rough roads. The sport ride is too stiff (I'm 35). The front seats are terrible... It was hell driving 10 hrs. I bought it because I wanted a MB but I probably should have gotten something else more comfortable. It is a great car but just not right for me. I'll keep 1 yr no more.
I recently purchased a used C250 Sport a few weeks ago and I have to admit that my expectations for the car was relatively low considering it was not an E, S, or ML. This car came with the premium 1 package and the lighting technology package. The premium 1 package comes with the Harmon Kardon 7.1 surround sound, which honestly is the best sound that I have heard come from a car before and I am an avid Bose consumer. The lighting package comes with the adaptive HID headlights and adaptive high beam technology that reacts to oncoming traffic and dims accordingly. Whats more is that I read some of the reviews people gave the car and saw that people were disappointed with performance and the fact that there was lack of leg room in the rear. To begin, this is in no way a BMW 335i or M3. Mercedes has always considered luxury over sport and adds the sport package for those who want a spirited drive, not a drifting at the intersections drive. The power and transmission are geared for a more economical drive to conserve fuel and utilize torque over horsepower, this is noted by the fact that the car always starts in economy mode. In addition, the leg room is decent and I am 5'10". While it is not the most spacious, it is also not an E-class which according to the side-by-side comparison on edmunds,com only adds 2, yes 2 whole inches to the rear leg room. Not enough to spend an added 5-6K. Overall, the car is what you would expect from a compact 4-door with great fuel economy, I average 33-35MPG at 75mph, while using cruise control and 20-25 in city driving, depending on traffic. This car is what you could expect for a 25-30K compact in it's class and if you are expecting a sporty drive with gearing and power specifically for pulling on the driver next to you, then you should consider a BMW 3-series or Infinity G37.
This little car makes getting around town a breeze. On long trips, the fuel costs are as promised by marketing literature. Handling on wet or icy roads has been reassuring due to the sturdy feel of the braking and steering systems. Great visibility throughout for safer lane changes, etc. Love the mocha/almond interior and seat warmers. Temperature zones adjust beautifully for individual comfort. Trip facts on mileage, time and distance are well laid out. Sound system suits the mood by caressing or rocking riders.