I have had the E300D for about 10 days now, driving 800 miles. Nice, solid feeling, very comfortable. Gas mileage seems to be around 32mpg city and highway combined. Very well made- the car is in excellent shape for being 10 years old. Handles ok in snow, may be better with different tires.
Favorite features include the MB tex seats, radio/CD system, and the single wiper. Headlights are bright, and the fog lights even brighter.
Keyless entry system. I miss that.... Could use a better way to set the fan speed on the climate control system.