Passat, but which one?

Hi since my Corsa was driven flat last week, I want to buy now a new one. have thought about nen passat. It should be like this one, and definitely the staleheck, no combi:http://www.mobile.de/…/da.pl?… so this model. the link is now just an example. what should I be careful about when I add sun something? what are the different equipments? what are the engines? which are good? what does the passat cost approx. in the insurance? how much coal do I have to pay? plan if I want to have a reasonable enough 7000-8000€?