New Car Golf Kombi, Opel Insignia Sportstourter, VW Passat Kombi

Hello Together, I am 33 years old and expect to have a new generation with my girlfriend in January. I have been driving a golf 4 petrol with 100 Ps for 6 years. I am very satisfied with the car but it has to be a new car next year…only which brand? Important to me is more space therefore it should be a combo..had the Golf 6 combo in mind do I also like the Insignia u Astra Sportstourer, also the VW passat kombi. Very important to me is a trailer coupling which seems to be zb at Ins ignia almost not to be given. Further basic data that pre-fabricated for me From year of construction 2010 up Highest 100,000 km Seat clearance CD player More Ps I want to come from the spot and also have driving fun I drive in the year at most 10,000 km already drive a diesel and I like the spritzigkeit very I know I have little km that is not worth the diesel but makes just more fun I don’t want to swallow a petroler with 170 ps but12 liters…what costs the one diesel more a n tax u insurance or is it generally harmful to drive a diesel with so little km because it is not good for him? My budget is between 10,000 and 15,000 euros.. What do you think you can advise me about or speak from experience? I thank you very much.