Hello, I plan to buy a Volvo V40 in the next 2 months. It should be a diesel and it should have a Navi. Can you possibly tell me what I need to pay special attention to & what equipment should he have at least? I thought so about year 2001-2003 with about 80.000km. Is there also a Navi with large display (map view, etc)? Which diesel engine should I use? MfG