I believe MB does have a pod-type add-on Nav system. It may be made to fit the car, but I believe you may be happier with a dvd-type nav system that rablake is describing. the addition of COMAND would be a wallet-breaking experience, even on a new E-class. The 97 would be worse, they never offered it, at least in the US. please refrain from locking your caps on, it is irritating to a lot of people, myself included.....Gilly