Perhaps it's the Michelin tires on the car, but this has to be one of the smoothest riding cars we have owned. The only drawback, if you want to call it that, is the acceleration. Once it's moving though, it's easy to find yourself doing 90. For comparative purposes I drove the sedan, and the two ride completely different. I can't see spending another $20,000 to get the E class wagon, simply to get more speed. I doubt it could be more comfortable that this one. The gas mileage is good and will only improve once it's broken in.
We've had this car for 7 months now, and it is our all time favorite vehicle. Elegantly designed and mechanically superb, we have driven it with pleasure and in comfort on snowy roads and in Washington's steam-bath summer. The fuel mileage is not great (about 19 mpg), but that seems to be an inevitable tradeoff for cars of this class.
The C Wagon 4wheel drive is an excellent vehicle. Excellent engine. It's quiet, but with very good accelleration. Very good heater and A/C.Super solid feel that BMW or any Japanese brand cannot match. Only complaint is that vehicle is too low !