Servus, a dealer purchase price can be determined online quickly, e.g. at DAT There you enter only the very general data for a naked basic model and get price X for it. But now my car still has a top equipment like a certain model line, large Navi, head-up display, sports seats, panoramic roof etc. usf. Is there a guideline, what you can expect or demand on-top, so plus X%? How are your experiences?