The data card has the name and address of the original owner. I dont know if it the next owner can get one. They didnt take mine. If you want to access EPC for your car, all you need is the vehicle ID number(VIN) which is in your registration or you can find it the driver side door frame/post and on the lower left hand side of the windshield near the dash(W123).
http://www.***************/mercedes-auto-parts/mercedes-vehicle-identification-numbers.htm