We had a 2002 Mercedes C230 prior to this vehicle and it was wonderful. However, after having a child we decided that we needed a larger car. We looked at all of the different models of the E-Class and decided after driving all and talking with our sales rep that the 2005 E320 CDI was our best option. We haven't regreted it one moment.
The great fuel economy (gets at least 650 miles per tank before we have to refill).