This is not for me, but a friend. She wants to sell her car, which is 3 years old, fully maintained and genuine very low mileage (7,000 Km). It is literally the one little old lady owner (sorry

). Problem is, she doesn't have a clue how much to ask.
I'm sure I've seen links on this forum, which can be used to determine a price, but I can't find them. Can somebody please provide me a couple of these links for our friend?