Purchase decision 2,5 V6

Hello I play with the idea of buying an omega 2,5 V6 my questions: if I should buy one on what I have to pay attention where is the engine most vulnerable or is the car still a workshop faithful car which Bj recommend you to me where most of the childhood diseases are removed because I don’t have so much money over it should be one between 2000 and 4500 € is the preivostellung in order or should I spend more on how high the consumptions are 9-10l realistic? eh he does not matter but the car has a 2-din radio shaft about like this:http://suche.mobile.de/…/showDetails.html?…http://www.autoscout24.de/Details.aspx?id=lfscho2sw1hn thanks for replying ps so the difference between V6 and MV6